Histamine intolerance affects millions of people every year, and many are unaware of its symptoms or that they may be presented with it. The connective tissues in your body produce histamine to help organs, muscles, and nerves receive and deliver messages to your brain and immune system. For example, histamine signalling will trigger your brain tissues to release pent-up stomach acids to process the foods you eat. It also helps the immune system response by drawing attention to damaged tissue that requires repair. Histamine intolerance comes from an overproduction of the histamine molecule from mast cells and basophils. Most patients with histamine intolerance symptoms present with hyperinflated histamine levels and/or no way to metabolize it, leading to symptoms such as sinus issues, intestinal permeation, chronic headaches, anxiety, fatigue, hives, nausea, and digestive problems. It's important to clarify that histamine intolerances are very different than mastocytosis and mast cell activation syndrome. In these disorders, patients either genetically produce too many mast cells, or the mast cells are hyper-reactive to triggers and release too much daily histamine. These disorders are managed differently and you should always first speak to your doctor or naturopath for a proper diagnosis. While histamine presents widely throughout the body and serves many functions, the abundance of histamine production and uptake inside the digestive system has led researchers to investigate the root causes of excess histamine and the potential for probiotic treatment in stabilizing it. Probiotics for histamine intolerance offer significant opportunities to reduce histamine production and treat histamine intolerance. What is a Histamine? Histamine release occurs naturally inside your body as one of the five major biogenic amines. These five neurotransmitters, dopamine, norepinephrine, epinephrine, serotonin, and histamine, regulate brain functions and endocrine responses. Your cells produce histamine to send signals from your body to your brain as a part of complex biochemical reactions, particularly in digestion and gut motility. They also produce histamine to stimulate the immune response, activating your white blood cells to defend you from allergens or other threats. What Causes Histamine Intolerance? Your body produces histamine for its own use, and when your body can’t produce enough enzymes to break down all the histamine in your system, your histamine levels rise, creating an imbalance. This causes every mast cell in your body to produce the enzyme to break it down, known as diamine oxidase or “DAO”. DAO is responsible for breaking down the histamine compound in your food, and a lack of it creates a histamine-derived imbalance or build-up. Symptoms of elevated histamine include: itchy, flushed skin diarrhea & abdominal pain nausea headaches congestion, running/itchy nose & eyes dizziness heart palpitations/anxiety You may not be aware of it, but you have relatively high amounts of naturally occurring histamine in your diet every day. Foods high in histamine include: Fermented foods and beverages like Sauerkraut and wine Processed meats Aged cheeses Eggplants and spinach Avocados And dried fruits Some foods, including alcohol, energy drinks, black tea, and green tea, block DAO, preventing it from breaking down histamine. While other factors, including genetics and medications, may lower DAO production, diet factors significantly decreased DAO activity. It's important to recognize that a histamine-rich diet enhances the production of gut bacteria in healthy individuals, and is not an unhealthy way to eat. In fact, histamine-rich foods are usually the highest in naturally occurring probiotics. However, when your system falls out of balance, multiple sources of histamine build up and trigger histamine intolerance. The problem arises when dietary intake and bacterial histamine production combine at such staggering levels that human mast cells can't manufacture enough DAO to process the overflow. Disorders like SIBO, or small intestinal bacterial overgrowth, can also exacerbate histamine intolerance because they not only generate their own histamine release but damage the area of the gut lining that creates a large supply of the body’s DAO enzyme. Therefore, people with small intestinal bacterial overgrowth or SIBO are at a much higher risk of presenting with histamine intolerant symptoms. Antihistamine Probiotics vs. Histamine Intolerance Because histamine production is deeply connected to gut bacteria levels, researchers have been looking into histamine-reducing probiotics as a treatment. Treatment of histamine intolerance focuses on ways to limit histamine intake and remove excess histamine from your system. Diet plays an important role in limiting histamine sources, but research has uncovered more about the interplay of gut bacteria in health. Using probiotics for histamine intolerance treatment demonstrates improved outcomes for people suffering from histamine intolerance. So much of your gut health depends on your gut biome. These microscopic bacteria coexist in your digestive tract and help your body break down and process foods. Some strains of beneficial gut bacteria, known collectively as probiotics, display histamine-increasing properties, while others offer histamine-lowering effects. The role of probiotic bacteria in curbing histamine overproduction is a rapidly advancing area of mast cell research, and you can find numerous studies connecting probiotic strains to lowering histamine presentations (or increasing it, for that matter). For example, because histamine is a biogenic amine, physicians have been looking to other naturally occurring biogenic amines, such as lactic acid (and lactic acid-producing bacteria) in its role in histamine intolerances. It may come as a surprise, but any of the common ‘good for you’ probiotics from the lactobacillus family are being investigated as possible aggravators due to their high lactic acid production in food. However, the impacts on histamine depend on the strain, so this does not apply to all strains of a specific species or genus. Alternatively, low-histamine probiotics activate anti-inflammatory agents in the mast cells, help stabilize mast cells, and down-regulating the sensitivity of histamine receptors. Many of these flora are found in the Bifidobacterium genus. Some histamine-lowering strains include: ​​ Lactobacillus plantarum Bifidobacterium longum - helps improve gut barrier and assist in histamine degradation Bifidobacterium infantis Lactobacillus rhamnosus And physicians have been looking into the probiotic lactobacillus reuteri, which they derive from histamine itself Moreover, some histamine-increasing probiotics include: Lactobacillus casei Lactobacillus Bulgaricus Streptococcus thermophilus Lactobacillus delbrueckii Lactobacillus helveticus More so, some probiotics are classified as histamine neutral, or helpful at lower doses, such as lactobacillus acidophilus when taken under 1 billion CFU per day. Histamine-lowering probiotics muffle histamine signals and compounds like the probiotic b. longum display clinical benefits in lab tests against allergies. However, people are different, and we all have unique levels of gut flora in our stomachs and intestines, so probiotic supplements don't have a uniform effect on all demographics. An anti-inflammatory diet regimen that avoids histamine-rich foods lays the basis for reducing histamine levels. Incorporating probiotics that assist in histamine prevention or removal can present meaningful improvement and symptom reduction in patients suffering from histamine intolerance. In all cases, you should work with your doctor to confirm your diagnosis and develop personalized treatments for histamine intolerance. Many factors in your health composition and diet limitations affect treatment and results. For example, consuming the aforementioned DAO-blocking foods, such as alcohol, can create confounding impacts when using probiotics to manage histamine symptoms. Learn More About Histamine Intolerance Treatment Research indicates that readjusting your gut flora with low-histamine probiotics can reduce inflammation, alleviate symptoms, and reduce the effects of seasonal allergies. Treatments that include a low-histamine diet combined with histamine intolerance probiotics work together to improve gut health in people diagnosed with histamine intolerance. Most patients with histamine intolerance tend to have an overabundance or bacterial deficiency in their gut flora. The key to resolving symptoms is to eradicate the aggravates (both food and flora) and restore a healthy bacterial balance to the ecosystem. Furthermore, as described above, taking the wrong probiotic supplement can worsen your condition, as they promote histamine production. If you want to learn more about probiotics or the management of histamine intolerance symptoms, contact our Toronto Naturopath, Dr. Courtney Holmberg ND by calling (647) 351-7282 today.

Collagen is the structural protein that quite literally holds you together. It supports your skin’s firmness, your joints’ resilience, your gut lining, and even your hair and nails. But here’s the reality: collagen loss starts earlier than most people think. By your mid-20s, collagen production declines by about 1% per year—and that decline accelerates with lifestyle, environmental stressors, and hormonal shifts. The result? Fine lines. Skin laxity. Joint discomfort. Slower healing. Thinning hair. The good news: collagen loss is not just inevitable aging—it’s modifiable. In this article, we’ll break down: What’s actually causing collagen loss The biggest hidden accelerators And the most effective, evidence-informed ways to support collagen production—naturally What Actually Causes Collagen Loss? Natural Aging (But It’s Not Just Time) Collagen synthesis slows over time, but what matters more clinically is collagen quality. As we age: Fibres become fragmented Cross-linking becomes impaired Skin loses elasticity—not just thickness Estrogen plays a major role in collagen production. This is why many women notice accelerated skin aging in perimenopause. UV Exposure (The #1 External Collagen Destroyer) UV radiation drives oxidative stress and activates enzymes called matrix metalloproteinases (MMPs) that literally break down collagen. SPF is not just anti-aging—it’s collagen preservation. Even incidental sun exposure (walking, driving) contributes over time. Blood Sugar + Glycation (The Silent Skin Agers) Excess sugar binds to collagen in a process called glycation, creating stiff, brittle fibres (AGEs = advanced glycation end products). This is why patients with insulin resistance often present with: Premature wrinkling Dull, uneven skin Slower wound healing Chronic Stress + Cortisol Elevated cortisol: Suppresses collagen synthesis Increases inflammation Impairs skin barrier repair If your nervous system isn’t regulated, your skin won’t be either. Poor Sleep (Underrated but Critical) Collagen is rebuilt at night through growth hormone release. Even 1–2 nights of poor sleep can: Reduce skin hydration Increase fine lines Slow repair processes Nutrient Deficiencies Collagen production depends on: Vitamin C (cofactor for synthesis) Glycine + proline (amino acids) Zinc + copper (enzymatic support) Low ferritin and low protein intake are two of the most overlooked drivers of poor collagen integrity in women. Smoking + Environmental Toxins Smoking constricts blood flow and increases free radical damage, accelerating collagen breakdown dramatically. Gut Health + Inflammation Emerging research shows that gut permeability and chronic inflammation impair collagen turnover and repair. How to Support Collagen Naturally (Root-Cause Approach) Targeted Collagen Supplementation Not all collagen is created equal. Look for: Hydrolyzed collagen peptides (better absorption) Clinically studied doses (typically 10–20 g/day) Type-specific blends (skin vs joints) and quality brands that are using standardized collagen proteins and not just ground-up animal byproducts. TIP: Collagen works best when paired with vitamin C intake—without it, synthesis is limited. Eat for Collagen Production (Not Just Intake) Collagen isn’t just what you take—it’s what your body can build. Focus on: Protein-rich foods (eggs, fish, legumes if vegetarian) Vitamin C (citrus, berries, peppers) Mineral support (pumpkin seeds, leafy greens) TIP: Think: “feed the fibroblasts”—the cells that actually make collagen. Red Light & Infrared Therapy (Underrated Game-Changer) This is where skincare meets cellular biology. Red and near-infrared light therapy (like LED face masks) work by: Penetrating the skin at specific wavelengths Stimulating mitochondria (ATP production) Activating fibroblasts → increasing collagen synthesis Clinical benefits: Improved skin elasticity Reduction in fine lines Faster healing and reduced inflammation Support for acne and rosacea TIP: The most effective wavelengths for collagen stimulation are: ~630–660 nm (red light) - this brand meets the criteria at a great price point ~830–880 nm (near-infrared) How to use: 10–20 minutes, 3–5x per week Clean skin, before skincare Consistency matters more than intensity Think of red light therapy as a “workout” for your skin cells. Optimize Sleep (Non-Negotiable) Support collagen repair by: Keeping your room cool and dark Avoiding screens 60 minutes before bed Supporting circadian rhythm (morning light exposure) Blood Sugar Regulation To prevent glycation: Prioritize protein with meals Avoid frequent high-sugar spikes Use movement after meals Stress Regulation = Skin Strategy Support your nervous system with: Breathwork Adaptogens (when appropriate) Nervous system regulation practices Professional Guidance + Testing If collagen loss feels accelerated (hair loss, skin aging, joint issues), consider assessing: Ferritin Vitamin D B12 Thyroid function Sex hormones Blood glucose + insulin The Bottom Line: Collagen Is Built—Not Just Lost Collagen decline isn’t just about aging—it’s about: Cellular energy Nutrient status Hormonal balance Inflammation levels When you address these root causes, you don’t just “slow aging”—you improve how your body functions at every level. If You’re Noticing: Early skin aging Hair thinning Joint discomfort Slower healing …it’s worth looking deeper. A personalized, root-cause approach can help you restore collagen production from the inside out. If you're concerned about premature aging, joint discomfort, or loss of collagen, personalized guidance can help. To explore collagen-boosting for your needs, contact Dr. Courtney Holmberg , a  Toronto-based naturopathic doctor , at (647) 351-7282 or book a consultation today .

Many women are surprised to learn that perimenopause often begins in their late 30s or early 40s—sometimes years before their menstrual cycles actually stop. During this transition, ovarian hormone production becomes more irregular. Estrogen, progesterone, and other signalling hormones fluctuate, which can lead to symptoms that feel confusing or unpredictable. As a naturopathic doctor who focuses on women’s hormone health, I see many patients who sense that something has changed in their bodies—but aren’t sure why. The good news is that there are highly effective natural therapies that can support your body through this transition. Understanding which symptoms occur at which stage of perimenopause is the key to choosing the most helpful natural treatments. What Is Perimenopause? Perimenopause is the hormonal transition leading up to menopause. It typically lasts 5–10 years and is characterized by fluctuating estrogen levels and a gradual decline in progesterone. The hormonal shifts do not happen all at once. Instead, perimenopause progresses through phases that tend to produce different patterns of symptoms. Recognizing these patterns helps us choose therapies that work with your physiology rather than against it. Early Perimenopause (Often Begins Late 30s–Early 40s) The earliest stage of perimenopause is usually driven by declining progesterone and irregular ovulation. Many women still have regular periods during this stage, which is why symptoms are often overlooked. Common symptoms Shorter menstrual cycles PMS that feels worse than it used to Breast tenderness Anxiety or mood swings before your period Poor sleep Increased stress sensitivity Early waking (3–4 AM insomnia) Fatigue despite adequate sleep These symptoms are typically related to low progesterone and stress hormone dysregulation. Natural therapies that work well in early perimenopause 1. Adaptogenic herbs (for stress resilience and energy) Adaptogens help regulate the HPA axis, which becomes more sensitive as progesterone declines. Helpful options include: Rhodiola Panax ginseng Ashwagandha These natural herbs can support energy, cognitive function, and resilience to stress—while also helping regulate sleep. 2. Magnesium and nervous system support Magnesium glycinate or bisglycinate is one of the most effective nutrients for early perimenopause symptoms. It can help improve: sleep quality muscle tension stress response PMS symptoms Many women notice improvements in sleep within weeks. 3. Blood sugar stability Blood sugar swings can significantly worsen hormonal symptoms. Prioritizing: protein with every meal whole foods fibre-rich carbohydrates helps stabilize cortisol and estrogen fluctuations. Mid-Stage Perimenopause (Hormone Fluctuations Become More Noticeable) As ovarian signalling becomes more irregular, estrogen levels may swing higher and lower than normal. This hormonal volatility often produces new symptoms. Common symptoms Mood swings Irritability heavier or irregular periods breast tenderness headaches or migraines bloating brain fog worsening PMS This stage is often described as estrogen dominance relative to progesterone, meaning progesterone levels decline more quickly than estrogen. Natural therapies that support this stage 1. Cruciferous vegetables and estrogen metabolism support Supporting healthy estrogen metabolism can reduce symptoms related to hormonal imbalance . Helpful nutrients include: DIM Calcium-D-glucarate Sulforaphane from cruciferous vegetables These compounds help the body process and eliminate excess estrogen metabolites. 2. Pine bark extract (Pycnogenol) Pine bark extract contains powerful flavonoids that support: circulation inflammation reduction cognitive function Research suggests it may improve: brain fog fatigue mood joint discomfort Many patients also notice improvements in mental clarity and energy. 3. Fibre and healthy dietary fats Dietary fats and fibre support hormone signalling, cell membrane health, and hormone metabolism through the digestive tract. They also help stabilize blood sugar. Helpful foods include: flaxseed pumpkin seeds walnuts olive oil omega-3-rich fish These nutrients help stabilize inflammation and hormone signalling. Late Perimenopause (Closer to Menopause) In the later stages of perimenopause, estrogen levels begin to decline more consistently, leading to the symptoms many people associate with menopause. Common symptoms hot flashes night sweats sleep disruption vaginal dryness lower libido joint pain more significant brain fog fatigue These symptoms are often driven by declining estrogen and thermoregulatory instability in the brain. Natural therapies that support late perimenopause 1. Black cohosh for hot flashes and night sweats Black cohosh is one of the most studied herbal therapies for menopausal symptoms. Research suggests it may help reduce: hot flash frequency night sweats sleep disruption It appears to work by influencing thermoregulatory centers in the brain, helping stabilize body temperature. 2. Phytoestrogen-rich foods Certain plant compounds can provide gentle estrogen-like activity. Foods rich in phytoestrogens include: soy (tofu, tempeh, edamame) flaxseed legumes For some women, these foods help reduce hot flashes and support hormone balance. 3. Vaginal and tissue support Declining estrogen can affect vaginal and urinary tissues. Helpful natural therapies include: sea buckthorn oil Hyaluronic acid vaginal suppositories omega-3 fatty acids These support tissue hydration and elasticity. Lifestyle Factors That Strongly Influence Perimenopause Symptoms While supplements can help, lifestyle factors are often the most powerful tools for managing perimenopause. Key areas to focus on include: Sleep:  Prioritize consistent sleep routines and minimize evening screen exposure. Strength training and resistance exercise support metabolic health, bone density, and insulin sensitivity. Stress regulation:  Meditation, breathwork, and time outdoors can significantly stabilize cortisol rhythms. Nutrition:  A whole-foods diet rich in protein, fibre, and healthy fats supports hormone metabolism. Why Protein Intake Matters During Perimenopause One of the most overlooked strategies for supporting hormone balance during perimenopause is adequate protein intake. During this transition, women naturally begin to experience changes in muscle mass, metabolism, and insulin sensitivity. Estrogen plays an important role in maintaining lean muscle, and as levels fluctuate, many women notice: increased abdominal weight gain reduced muscle mass lower energy levels increased blood sugar swings stronger cravings for carbohydrates Protein is one of the most effective nutritional tools for stabilizing these changes. A diet that includes sufficient protein helps support: muscle preservation metabolic health blood sugar stability satiety and appetite regulation hormone signaling How Much Protein Do Women Need During Perimenopause? Most women benefit from consuming more protein than they did in their 20s and early 30s. Research suggests women in midlife may benefit from approximately: 1.0 - 1.2 grams of protein per pound of body weight per day For many women, this works out to roughly: 120–150 grams of protein daily, depending on body size and activity level. Distributing protein evenly throughout the day can help optimize muscle protein synthesis and blood sugar regulation. A helpful structure is aiming for 30–45 grams of protein per meal. Best Protein Sources for Hormone and Metabolic Health Prioritizing whole-food protein sources supports both hormone metabolism and nutrient intake. Helpful options include: Animal-based sources: eggs (egg whites are even better) poultry fish and seafood grass-fed meats Greek yogurt or cottage cheese Plant-based sources: lentils chickpeas tofu and tempeh hemp seeds pumpkin seeds Combining protein with fibre-rich carbohydrates and healthy fats can help stabilize blood sugar and support sustained energy. Protein and Perimenopause Weight Gain Many women notice weight changes during perimenopause, particularly increased abdominal fat. While hormones play a role, muscle loss and metabolic slowdown are also major contributors. Higher protein intake helps: preserve lean muscle mass improve insulin sensitivity increase satiety support fat metabolism Strength training combined with adequate protein intake is one of the most effective strategies for maintaining metabolic health during midlife. When Hormone Therapy May Be Appropriate Natural therapies are incredibly helpful for many women, but they are not the only option. In some cases, bioidentical hormone therapy  can provide meaningful relief—especially for severe symptoms such as intense hot flashes or persistent insomnia. Modern hormone therapy, when prescribed appropriately and individualized to the patient, can be a safe and effective tool. In my practice, many women benefit from a combined approach, using both natural therapies and hormone therapy when appropriate. The Most Important Thing to Remember Perimenopause is not a disease—it’s a natural hormonal transition. However, that doesn’t mean you have to suffer through the symptoms. With the right combination of testing, lifestyle support, and targeted therapies, most women can move through perimenopause feeling energized, balanced, and supported. The other most important thing to remember is that you do not have to struggle through hot flashes, mood swings, broken sleep or brain fog. There are many supportive therapies available for you, and I’ll encourage you to reach out to discuss the best options for you through this phase of life. To schedule a consultation with Dr. Courtney Holmberg , ND, visit us online or give the clinic a call at 647-351-7282 today. Let’s find the right support for you.

As a naturopathic doctor in Toronto, I see patients every week who are frustrated with their skin. Acne that won’t clear. Rosacea that flares without warning. Eczema, psoriasis, or skin that just looks dull and inflamed, no matter what products they use. Most of them have tried everything—prescriptions, expensive skincare, facials, elimination diets—only to feel stuck. I approach skin health differently. I don’t treat skin as a surface problem. I treat it as a reflection of what’s happening internally. Clear, healthy skin comes from addressing the root cause. How I Approach Skin Concerns as a Naturopathic Doctor Naturopathic medicine focuses on identifying why your skin is reacting the way it is. Instead of suppressing symptoms, I look at the systems that influence skin health the most: Hormonal balance Gut and digestive health Inflammation and immune function Nutrient status Liver detoxification Stress and cortisol levels Skin issues are rarely random. When we connect the dots and correct the underlying imbalances, the skin almost always responds. Skin Conditions I Commonly Treat in My Toronto Practice I work with patients experiencing a wide range of skin concerns, including: Acne (adult acne, hormonal acne, inflammatory acne) Eczema and dermatitis Rosacea Psoriasis Chronically dry, itchy, or sensitive skin Stress-related or gut-driven skin flares Many of my patients come to me after years of short-term fixes. My goal is always long-term improvement and skin that stays calm, clear, and resilient. The Role of Diet in Skin Health What you eat has a direct and measurable impact on your skin. Blood sugar swings, inflammatory foods, and nutrient deficiencies often show up as breakouts, redness, or dullness. When I support skin health through nutrition, this often includes: Reducing refined sugar and ultra-processed foods Identifying food triggers like dairy or gluten when clinically appropriate Increasing antioxidant-rich vegetables and fruits Supporting hydration and fibre intake Including healthy fats such as olive oil, nuts, seeds, and avocado Supporting gut health with probiotics or fermented foods These changes don’t need to be extreme to be effective. Small, strategic shifts can make a noticeable difference in skin clarity within weeks. Hormonal Imbalances and Skin Breakouts Hormones play a huge role in skin health—especially for women. If your breakouts are cyclical, worsen around your period, or start during perimenopause, postpartum, or high-stress periods, hormones are often involved. Hormonal skin support may include: Comprehensive hormone testing Herbal medicine, such as chaste tree (Vitex) or DI, M when appropriate Supporting liver function to improve hormone metabolism Addressing stress and cortisol dysregulation When hormones are better regulated, oil production settles, inflammation decreases, and skin becomes more predictable. Gut Health and the Gut–Skin Connection There is a strong link between digestion and skin. Acne , rosacea, eczema, and psoriasis are frequently associated with gut imbalances and inflammation. I often assess gut health when patients have skin concerns alongside symptoms like: Bloating or irregular digestion Food sensitivities Fatigue or brain fog Signs of leaky gut By supporting gut integrity and the microbiome through targeted nutrition, probiotics, improving digestive regularity, and addressing possible overgrowths, we often see significant improvements in skin tone and texture. Supporting Detox Pathways for Healthier Skin Your skin is one of the body’s detoxification organs. When detox pathways are overloaded or sluggish, congestion and inflammation can show up on the skin. Rather than aggressive cleanses, I focus on gentle, sustainable detox support, such as: Liver-supportive herbs like milk thistle or dandelion Adequate hydration and fibre intake Supporting lymphatic flow through movement or dry brushing Therapeutic sweating when appropriate When detox pathways are supported properly, the skin often clears without needing extreme interventions. Natural Topical Skin Care That Supports Healing Internal work is foundational, but topical care still matters. I typically recommend skincare that supports the skin barrier rather than stripping or irritating it. This often includes: Avoiding synthetic fragrance and harsh preservatives Using gentle, non-comedogenic oils like jojoba or rosehip Choosing mineral-based sunscreen (zinc oxide) Reducing over-cleansing and over-exfoliation Less irritation on the surface allows the internal work to do its job more effectively. Stress, Cortisol, and Skin Inflammation Chronic stress is one of the most overlooked drivers of skin issues. Elevated cortisol can worsen acne, eczema, rosacea, and psoriasis while also disrupting sleep, digestion, and hormones. In practice, stress support may include: Adaptogenic herbs Nutrient support, such as magnesium Sleep optimization strategies Nervous system regulation and lifestyle changes When stress is better managed, skin flares often reduce dramatically. A Root-Cause Approach to Skin Health I don’t believe in chasing symptoms or trends. I believe in understanding the body and supporting it properly. When skin is treated as part of a larger system—not a standalone problem—the results tend to be deeper, longer-lasting, and far more sustainable. Looking for a Naturopathic Doctor for Skin Health in Toronto? If you’re searching for a naturopathic doctor in Toronto for acne, eczema, rosacea, or chronic skin concerns, I offer a root-cause, evidence-informed approach designed to support skin health from the inside out. My work focuses on comprehensive assessment, targeted testing, and personalized treatment plans that reflect your unique physiology—not a one-size-fits-all protocol. Healthy skin starts internally. If you’re ready to understand why your skin is reacting and what it actually needs to heal, you can book a consultation with Dr. Courtney Holmberg to get started. Give us a call at 647 351 7282 today.

A Toronto naturopath’s perspective on getting to the root of chronic bloating, gas, and bowel changes If you’ve been told you have IBS, you’re not alone — and you’re not imagining your symptoms. IBS can take over your day-to-day life: persistent bloating , uncomfortable gas, unpredictable bowel movements, and food reactions that never seem consistent. Many of my patients come to me feeling dismissed after being told “everything looks normal” or that they’ll just have to manage symptoms long-term. But here’s the question I ask almost every new patient with chronic digestive symptoms: What if your IBS isn’t actually IBS at all? In clinical practice, I see this over and over again — people diagnosed with IBS who are actually dealing with Small Intestinal Bacterial Overgrowth (SIBO). Identifying this distinction can be the turning point between endless symptom management and real, lasting improvement. Let’s walk through how IBS and SIBO overlap, the signs you may be misdiagnosed, and how we approach natural SIBO treatment in Toronto using root-cause medicine. IBS vs SIBO: Why These Conditions Are So Often Confused Common IBS Symptoms IBS is a symptom-based diagnosis, meaning it’s diagnosed by what you feel — not by a definitive test. Symptoms commonly include: Bloating and abdominal discomfort Constipation, diarrhea, or alternating between the two Gas, cramping, and urgency Fatigue and food sensitivities Normal findings on imaging and routine labs Because there’s no clear biomarker, IBS is often diagnosed after more serious conditions are ruled out. How SIBO Hides Behind the IBS Label SIBO occurs when bacteria that belong in the large intestine migrate and overgrow in the small intestine, where they interfere with digestion and nutrient absorption. Research shows that 33–78% of patients diagnosed with IBS test positive for SIBO — a staggering overlap. Different types of SIBO often mimic specific IBS patterns: Hydrogen-dominant SIBO  → diarrhea (IBS-D) Methane-dominant SIBO (IMO)  → constipation (IBS-C) Hydrogen sulphide SIBO  → bloating, gas, urgency, loose stools The key difference? SIBO explains why symptoms are happening. IBS often doesn’t. 5 Signs Your IBS May Actually Be SIBO In my Toronto clinic, these are the patterns that raise immediate red flags: Severe bloating shortly after eating (often within 30–90 minutes) Symptoms that worsen with probiotics or high-fibre foods Constipation that doesn’t respond to magnesium or fibre Diarrhea triggered by carbs, fruit, or FODMAP foods IBS that started after food poisoning, travel illness, or antibiotics If this sounds familiar, deeper testing is often warranted. What Causes SIBO in the First Place? SIBO isn’t about “bad bacteria.” It’s about gut defences breaking down. Your digestive system relies on several mechanisms to keep bacteria where they belong: Adequate stomach acid Digestive enzymes and bile flow A healthy ileocecal valve Strong gut motility via the Migrating Motor Complex (MMC) When one or more of these systems falter, bacteria can accumulate in the small intestine. Common Root Causes I See Clinically Low stomach acid (often with stress, aging, or PPI use) Slowed gut motility Post-infectious IBS after food poisoning (what appears to be the most common root cause) Scar tissue or adhesions from surgery Chronic stress and nervous system dysregulation Immune imbalances, including early-life factors This is why SIBO treatment must go beyond antibiotics/antimicrobials alone. How We Test for SIBO in Canada Accurate testing matters — guessing leads to relapse. SIBO Breath Testing Lactulose breath testing is the most accessible and validated option in Canada Measures hydrogen and methane gas production over time Can be done via clinic-based or mail-in testing in Toronto While jejunal aspirate testing is considered the gold standard, it’s rarely used outside of research settings. Additional testing (stool analysis, nutrient markers, and inflammatory markers) often helps uncover why SIBO developed in the first place. Natural SIBO Treatment: A Root-Cause Approach There is no one-size-fits-all SIBO protocol — and that’s where many people go wrong. In my practice, treatment is individualized, phased, and strategic. Step 1: Reduce the Overgrowth Depending on the type of SIBO: Prescription options like rifaximin Or herbal antimicrobials (oregano, berberine, neem, allicin) Step 2: Address Biofilms Targeted supplements can help disrupt bacterial biofilms, improving naturopathic treatment success. Step 3: Restore Gut Motility Supporting the MMC is essential to prevent relapse: Natural or prescription prokinetics Nervous system regulation Meal spacing and circadian rhythm support Step 4: Strategic Dietary Support Short-term low-FODMAP or elemental approaches Avoiding long-term restriction to protect the microbiome Step 5: Fix the Root Causes This may include: Digestive enzyme or stomach acid support Stress and vagal tone regulation Gut lining repair Step 6: Thoughtful Reintroduction of Probiotics Timing matters — probiotics are not always helpful early in SIBO treatment, and the type of probiotics use will matter! Is Your IBS Actually SIBO? Here’s What to Do Next If you’ve been living with chronic IBS symptoms and nothing seems to work, here are your next steps: Work with a practitioner trained in SIBO and functional gut health Ask about SIBO breath testing in Toronto Rule out other conditions such as celiac disease or IBD Address digestion, motility, and nervous system health — not just bacteria Uncovering SIBO often shifts patients from symptom management to true healing. You Don’t Have to Live With “Just IBS” For many patients, asking “Is my IBS actually SIBO?” is the moment everything changes. With the right testing, targeted treatment, and a root-cause approach, digestive health can improve — even after years of frustration. If you’re looking for natural SIBO treatment in Toronto, support is available. I work closely with patients to uncover what’s driving their symptoms and build a plan that’s realistic, evidence-based, and sustainable. Your gut isn’t broken — it just needs the right approach. Book a consultation with Dr. Courtney Holmberg to discuss more today at 647 351 7282.

Environmental Toxins That Disrupt Hormones: How Phthalates Impact Reproductive Health The Hidden Hormone Disruptors in Everyday Life You hear a lot about “toxins” these days, but some environmental chemicals truly deserve your attention. One group in particular — phthalates — are among the most concerning environmental toxins that disrupt hormones. These chemicals are powerful endocrine disruptors , meaning they interfere with your body’s natural hormonal communication. Over time, this interference can lead to hormonal imbalance and impact both male and female reproductive health. Research now links phthalates to various hormone-related challenges, including changes in fertility, estrogen balance, and even thyroid function. Understanding what these toxins are, where they come from, and how to reduce exposure is the first step toward protecting your hormone health. What Are Phthalates and Where Do They Come From? Phthalates are a family of industrial chemicals used to make plastics soft and flexible and to help fragrances last longer in products. The issue? They’re everywhere — and they often hide in plain sight. You’ll find phthalates in: Vinyl flooring and shower curtains Plastic food containers and packaging Children’s toys Scented products like lotions, shampoos, and air fresheners Whenever you see the word “fragrance” on a label, it often conceals a mix of hormone-disrupting chemicals — including phthalates. Because phthalates don’t bind tightly to the materials they’re added to, they easily leach into air, dust, and food, entering your body through your skin, lungs, or digestion. This results in constant, low-level exposure, which research now shows can have measurable effects on hormonal health. How Phthalates Disrupt Hormones Phthalates are classified as endocrine-disrupting chemicals (EDCs )  — environmental toxins that mimic or block your natural hormones. Your endocrine system relies on precise hormone signalling to regulate reproduction, metabolism, and overall balance. Phthalates can: Mimic estrogen , causing the body to over-respond Block hormone receptors , preventing normal hormone activity Disrupts hormone synthesis , altering how your body produces and metabolizes hormones This interference creates confusion in your hormonal system and may contribute to symptoms like irregular cycles, reduced fertility, and thyroid dysfunction. Effects on Female Reproductive Health Phthalates are especially concerning for women because of their estrogen-like activity. Research shows that high levels of exposure may contribute to: Hormonal Imbalance:  Lower estrogen, higher FSH, and disrupted ovulation patterns Ovary and Egg Health:  Damage to ovarian follicles, resulting in fewer and lower-quality eggs Fertility and IVF Outcomes:  Reduced pregnancy success rates, particularly in women undergoing fertility treatments Reproductive Disorders:  Increased risk of PCOS, endometriosis, and premature ovarian insufficiency Effects on Male Reproductive Health These toxins that affect hormones also impact male reproductive function. Studies link phthalate exposure to: Lower Testosterone:  Reduced hormone production and signalling Poor Sperm Quality:  Lower count, motility, and abnormal morphology Sperm DNA Damage:  Fragmentation that may affect embryo development and fertility outcomes Developmental Concerns:  Prenatal exposure may alter reproductive organ development in male infants How to Reduce Exposure to Hormone-Disrupting Chemicals The good news? Small, intentional choices can significantly lower your contact with environmental toxins like phthalates and support natural hormone balance. Here’s how: Avoid vinyl plastics:  Choose fabric shower curtains and silicone or wooden toys over vinyl. Read labels carefully:  Skip products that list “fragrance” or “parfum.” Opt for brands that disclose ingredients or use essential oils. Ditch plastic for glass: Never microwave food in plastic containers or plastic wrap — use glass or ceramic instead. Improve indoor air quality:  Open windows regularly and use an air purifier to reduce airborne chemicals. Choose clean beauty and home products:  Look for “phthalate-free” and “paraben-free” labels whenever possible. When in doubt, buy fragrance-free. These practical steps reduce your toxic burden and help maintain your body’s natural hormonal rhythm. Work with Dr. Courtney Holmberg, ND — Naturopathic Doctor in Toronto Navigating environmental toxins and hormones can feel overwhelming, but you don’t have to do it alone.   Dr. Courtney Holmberg, a  Toronto-based naturopathic doctor , helps patients across Ontario identify root causes of hormonal imbalance, lower toxin exposure, and restore hormone health using evidence-informed natural medicine. If you’re ready to uncover what’s impacting your hormones and take a proactive approach to reproductive wellness, book an appointment  today.

Digestive discomfort is one of the most common reasons patients seek naturopathic care. Whether you’re struggling with bloating, irregular bowel movements, heartburn, or abdominal pain, these symptoms can affect more than just your digestion — they can impact your mood, focus, and overall quality of life. As a Toronto naturopathic doctor , I see firsthand how often conventional treatments only address the surface — suppressing symptoms without asking why the problem exists in the first place. Naturopathic medicine takes a different approach: identifying the root cause of digestive concerns to create lasting relief and restore balance. Understanding Digestive Disorders Through a Naturopathic Doctor's Lens Digestive issues can appear in many forms — from mild, occasional discomfort to chronic conditions like IBS, food sensitivities, acid reflux, or leaky gut syndrome. These symptoms often point to underlying imbalances such as: Dysbiosis (gut microbiome imbalance) Low stomach acid or enzyme insufficiency Food sensitivities or intolerances Stress or nervous system dysregulation Inflammation or immune system activation In naturopathic medicine, we view digestion as a central pillar of overall health. The gut communicates directly with your brain through the gut-brain axis, meaning that emotional stress can impact digestion — and digestive dysfunction can affect mood, focus, and mental clarity. By addressing both the physical and emotional components of digestive issues, naturopathic care helps create long-term improvements, not temporary fixes. Nutrition Therapy for Digestive Health Diet is one of the most powerful tools for healing the digestive system. The foods you eat directly influence your gut microbiome and immune system function. A naturopathic approach focuses on: Anti-inflammatory eating:  Reducing foods that trigger irritation (like processed foods, refined sugars, and alcohol) while emphasizing whole, nutrient-dense foods such as leafy greens, omega-3 fatty acids, and turmeric. Supporting the microbiome:  Incorporating prebiotic and probiotic foods such as fermented vegetables, kefir, and fibre-rich plants to promote healthy bacterial balance. Optimizing digestion:  Supplementing with digestive enzymes when necessary to help the body properly break down and absorb nutrients. Restoring gut integrity:  For conditions like leaky gut, nutrients such as L-glutamine, collagen, and bone broth can help repair the intestinal lining and support immune regulation. Herbal Remedies for Digestive Support Herbal medicine is one of the oldest and most effective tools in naturopathic practice for improving digestion . Some of the most commonly used botanicals include: Peppermint oil:  Reduces abdominal pain and bloating in IBS. Ginger:  Supports healthy digestion and reduces nausea. Chamomile:  Soothes the digestive tract and eases stress-related gut symptoms. Slippery elm and marshmallow root:  Coat and protect the stomach lining, reducing irritation and supporting tissue healing. These herbs can be used in teas, tinctures, or supplements — and are often combined for synergistic benefits. Probiotic Therapy for Digestive Health Your gut is home to trillions of microorganisms that collectively make up your gut microbiome — an ecosystem essential for digestion, immune function, and even mental well-being. When this balance is disrupted (a state called dysbiosis), symptoms such as bloating, gas, constipation , loose stools, and food intolerances can develop. Probiotic therapy  is a foundational tool in naturopathic digestive care. By reintroducing beneficial bacteria, probiotics help: Restore healthy microbial balance after antibiotics or illness Support proper digestion and nutrient absorption Reduce inflammation in the intestinal lining Improve bowel regularity Strengthen immune function and decrease infection risk Enhance mood and focus through the gut-brain connection Different probiotic strains provide different benefits. For example: Lactobacillus plantarum  – supports intestinal barrier repair and reduces bloating Bifidobacterium longum  – helps regulate bowel movements and improve mood Saccharomyces boulardii  – beneficial for antibiotic recovery and traveller’s diarrhea Lactobacillus rhamnosus GG  – supports immune modulation and gut integrity A well-designed probiotic plan is tailored to your individual needs, taking into account your specific symptoms, medical history, and current microbiome balance. In my Toronto practice, I often combine probiotic therapy with dietary strategies and microbiome testing to ensure the right strains and doses are chosen for your specific needs. Personalized Testing and Individualized Treatment Plans No two digestive systems are the same. Many chronic digestive issues stem from unidentified food sensitivities or microbiome imbalances that can’t be seen through standard testing. At my Toronto clinic, I often use tools like: SIBO testing to rule out bacterial overgrowths - one of the most common causes of IBS-like symptoms Food sensitivity testing  to identify triggers causing inflammation. Comprehensive stool analysis,  such as the GI MAP or GI 360, to evaluate microbiome diversity, digestive enzyme output, and inflammatory markers. Hormone and stress assessments  to understand how cortisol and the nervous system may be influencing digestion. This data-driven approach allows for a personalized treatment plan that supports your unique biology and helps you heal faster. Taking the Next Step Toward Better Digestion Digestive health is about more than symptom control — it’s about restoring function, improving nutrient absorption, and enhancing overall vitality. As a Naturopathic Doctor in Toronto with a clinical focus in digestive health, I help patients uncover the root causes of bloating, IBS, reflux, and fatigue through in-depth testing, individualized nutrition plans, and natural therapies. If you’ve been struggling with ongoing digestive symptoms and want a more comprehensive approach, I’d love to help you get to the root cause and start feeling your best again. 👉 Book a consultation with  Dr. Courtney Holmberg , ND ,   to begin your journey toward better digestion and lasting wellness.

Motivation and drive are the cornerstones of success — whether you’re trying to build healthier habits, advance in your career, or simply feel more energized day to day. But staying motivated isn’t just about willpower — it’s also about how your brain chemistry works, particularly the role of dopamine, the neurotransmitter responsible for pleasure, reward, and goal-directed behaviour. As a Toronto Naturopathic Doctor, I often work with patients who feel “stuck” — lacking energy, focus, or motivation despite their best efforts. The good news is that science-backed and natural strategies can help you optimize dopamine levels and restore your inner drive. Let’s explore how dopamine impacts motivation and what you can do to naturally support it. Understanding Dopamine and Motivation Dopamine plays a central role in how we experience motivation, focus, and reward. Neuroscientist Dr. Andrew Huberman describes dopamine as being “about wanting, not about having.” In other words, dopamine fuels your desire to pursue goals — not just the satisfaction of achieving them. When dopamine levels are balanced, you feel energized, driven, and capable of taking action. When levels drop, it can lead to fatigue, apathy, and a lack of enjoyment in activities that once excited you. By supporting your dopamine system naturally, you can improve mood, focus, and overall vitality — without relying on stimulants or quick fixes. Science-backed Strategies to Improve Motivation: A Toronto Naturopathic Doctor's Perspective 1. Get Early Morning Sunlight Morning sunlight exposure helps regulate your circadian rhythm and naturally boosts dopamine production. Try to get 10–15 minutes of sunlight within an hour of waking. Avoid bright artificial lights between 10 PM and 4 AM, as this can suppress dopamine and disrupt sleep quality. 2. Try Cold Exposure Cold showers or brief cold plunges (1–3 minutes) have been shown to increase dopamine by up to 250%, with effects lasting for hours. This can improve alertness, mood, and resilience. 3. Eat a Dopamine-Supportive Diet Dopamine is made from tyrosine, an amino acid found in protein-rich foods. Include high-quality proteins such as grass-fed beef, poultry, fish, eggs, nuts, and seeds. Plant-based dopamine-supportive options include bananas, avocados, soy, and fermented foods like tempeh or miso. Maintaining balanced blood sugar also supports steady dopamine signalling. 4. Use “Intermittent Reward” Systems Instead of rewarding every small success, try celebrating wins at unpredictable intervals. This “intermittent reward” system keeps motivation high and helps sustain long-term engagement in your goals. 5. Be Mindful with Caffeine Caffeine can temporarily enhance dopamine receptor sensitivity, improving focus and motivation. One to two cups of coffee or green tea in the morning is beneficial for most people. Avoid caffeine after 2 PM to protect your sleep and dopamine balance. 6. Prioritize Restful Sleep Poor sleep significantly reduces dopamine levels and motivation. Aim for 7–9 hours of consistent sleep each night. Keep your bedroom cool, dark, and quiet, and avoid screen exposure for 60 minutes before bed to improve melatonin and dopamine regulation. 7. Move Your Body Daily Exercise naturally boosts dopamine and other “feel-good” neurochemicals. Whether it’s strength training, brisk walking, or yoga, consistency is key. Movement not only improves motivation but also enhances focus and mood. 8. Set Clear, Achievable Goals Ambiguous goals often lead to frustration and low motivation. Use the SMART method — Specific, Measurable, Achievable, Relevant, and Time-bound — to create clear action steps. Breaking large goals into smaller wins keeps dopamine release steady and builds confidence. 9. Avoid Dopamine Overload Too much stimulation — from caffeine, social media, energy drinks, or multitasking — can desensitize your dopamine receptors and cause “crashes.” Space out dopamine triggers and schedule intentional downtime to maintain long-term drive. Common Motivation Pitfalls Doing too much at once:  Overcommitting leads to burnout and low dopamine. Focus on one or two priorities at a time. Chasing quick fixes:  Energy drinks and excessive screen time can feel rewarding short-term but drain long-term motivation. Ignoring stress:  Chronic stress suppresses dopamine and energy production. Try mindfulness, breathing exercises, or adaptogenic herbs to restore balance. Skipping rest:  Short breaks throughout the day help reset your focus and sustain motivation. Comparing yourself to others:  Focus on your progress — dopamine thrives on achievable personal wins, not competition. The Bottom Line Motivation isn’t just mental — it’s biochemical. By supporting your dopamine system through lifestyle habits, nutrition, and proper rest, you can improve energy, focus, and drive naturally. As a Toronto Naturopathic Doctor , I work with patients every day to uncover the root causes of low motivation — whether related to hormone imbalances, nutrient deficiencies, or chronic stress — and help them rebuild their energy from the ground up. Ready to Reignite Your Drive? If you’ve been struggling with fatigue, low mood, or lack of motivation, there may be an underlying imbalance affecting your dopamine and energy systems. Book a consultation with Dr. Courtney Holmberg , Naturopathic Doctor in Toronto, to create a personalized plan to restore motivation, balance your biochemistry, and help you feel like yourself again.

Learn how this Toronto Naturopathic Doctor worked to solve her own Acne Why Acne Needs More Than a Topical Solution Acne is one of the most common skin concerns, affecting up to 80% of people at some point in their lives. For many, it begins in adolescence and continues into adulthood, disrupting confidence, mood, and overall quality of life. If you’ve tried countless creams, cleansers, or even prescription medications only to see temporary improvement or worsening flare-ups, you’re not alone. The reality is that acne isn’t just a surface-level issue. While conventional dermatology often focuses on topical or pharmaceutical symptom relief, acne is almost always a reflection of what’s happening internally. Hormones, digestion, inflammation, stress, and even environmental factors can all influence the health of your skin. That’s why my Naturopathic Approach to managing acne starts from within - focusing on a root-cause approach to clear skin. By using advanced testing such as the DUTCH test for hormones and the GI-MAP stool test  for gut health, we uncover the deeper drivers of breakouts. From there, we design personalized treatment plans that restore balance, support long-term clear skin, and improve overall health. If you’re looking for a natural, evidence-based treatment for acne that goes beyond the surface, read on to learn how naturopathic medicine can help. Why Conventional Acne Treatments Often Fall Short Dermatology has long relied on antibiotics, topical creams, oral contraceptives, or isotretinoin (Accutane) as the first line of defence against acne. While these approaches may help temporarily reduce breakouts, they often fail to deliver lasting results—and in many cases, create new issues. Topical creams  (benzoyl peroxide, retinoids) may reduce bacteria or oil production but can also irritate, dry, or damage the skin barrier. Antibiotics  may reduce acne-causing bacteria, but prolonged use disrupts the gut microbiome and can lead to digestive issues or antibiotic resistance. Oral contraceptives  may suppress acne by altering hormone levels, but they mask the imbalance rather than correcting it, and discontinuation often triggers rebound breakouts. Accutane (isotretinoin)  may provide dramatic results but carries risks of dryness, joint pain, elevated liver enzymes, and mood changes. These treatments rarely ask the most important question: Why is your skin breaking out in the first place? The truth is that acne is not a random occurrence—it’s a symptom of underlying imbalances in your body. Unless those imbalances are addressed, breakouts often return once medications are stopped. This is where naturopathic medicine shines, by digging deeper into root causes and offering holistic, sustainable solutions. The Root Causes of Acne: What Your Skin Is Telling You Skin health reflects internal health. When acne persists despite conventional treatments, it usually points to imbalances elsewhere in the body. The most common root causes include: 1. Hormonal Imbalances Hormones play a major role in acne, especially in women. Androgens (like testosterone and DHEA) increase oil production, which can clog pores and trigger breakouts. Many women notice flare-ups before their period, during times of stress, or when coming off hormonal birth control. Key hormonal contributors include: Excess androgens  (testosterone, DHEA) lead to oily skin and cystic acne Estrogen-progesterone imbalance , often seen in PMS or PCOS Insulin resistance , which increases androgen activity and worsens acne Cortisol dysregulation , where chronic stress drives inflammation and hormonal imbalance 2. Gut Health and the Microbiome The gut-skin axis is a powerful link. Imbalances in the microbiome, leaky gut, or digestive dysfunction often show up as skin issues, including acne, eczema, or rosacea. Research has shown that people with acne frequently have higher rates of gut dysbiosis and intestinal permeability. Common gut-related contributors include: Overgrowth of harmful bacteria or yeast  (Candida, small intestinal bacterial overgrowth) Low levels of beneficial bacteria  that regulate inflammation Leaky gut , allowing toxins and food proteins to enter circulation and trigger immune reactions Digestive enzyme deficiencies  leading to poor nutrient absorption (zinc, vitamin A, omega-3s—all critical for skin health) 3. Chronic Inflammation Acne is fundamentally an inflammatory condition. Whether triggered by food intolerances, gut imbalances, or environmental toxins, systemic inflammation increases sebum production, clogs pores, and worsens scarring. 4. Stress and Cortisol Stress directly impacts acne through the HPA axis (hypothalamic-pituitary-adrenal). Elevated cortisol increases sebum production and inflammation, while disrupting sleep and blood sugar balance. Stress also weakens the skin barrier, slowing healing and worsening scarring. 5. Diet and Lifestyle Diet plays a powerful role in acne development. Foods high in sugar, dairy proteins, and refined oils have been strongly associated with acne flare-ups. Conversely, anti-inflammatory diets rich in vegetables, omega-3 fatty acids, and antioxidants help calm inflammation and support skin healing. Functional Testing for Acne: Finding the Root Cause Rather than guessing what’s behind your acne, naturopathic care in Toronto uses functional lab testing to pinpoint imbalances. The DUTCH Test (Comprehensive Hormone Testing) The DUTCH test is a dried urine test that measures sex hormones, adrenal hormones, and their metabolites. It goes beyond standard bloodwork by showing not only hormone levels, but also how your body metabolizes them. For acne patients, the DUTCH test helps identify: Elevated androgens (testosterone, DHT, DHEA) are driving oil production Poor estrogen clearance, leading to hormonal congestion Cortisol patterns indicating stress-related breakouts Progesterone deficiency contributing to cycle-related acne With this information, targeted therapies can rebalance hormones naturally instead of masking them. GI-MAP & GI 360 Test (Comprehensive Stool Analysis) The GI-MAP/GI360 stool tests provide a detailed analysis of the gut microbiome, including bacteria, yeast, parasites, and markers of inflammation. For acne patients, it helps identify: Dysbiosis (imbalance of good and bad bacteria) Yeast or fungal overgrowth Intestinal permeability (leaky gut) Inflammation markers that drive systemic skin issues By restoring gut balance, systemic inflammation decreases, nutrient absorption improves, and skin health follows. Food Sensitivity and Nutrient Testing Some patients benefit from food sensitivity testing, which highlights hidden triggers like dairy, gluten, or soy. Nutrient testing can also reveal deficiencies in zinc, vitamin D, omega-3s, and antioxidants—all critical for skin healing. Together, these tests provide a roadmap for treatment that goes beyond trial and error. Natural Treatment Options for Acne Once testing identifies root causes, a personalized treatment plan can address acne from multiple angles. 1. Hormone Balancing Naturopathic therapies for hormone-related acne include: Herbal support : Chaste tree (Vitex) for progesterone support, spearmint for androgen reduction, DIM or sulforaphane for estrogen metabolism. Liver detox support : Cruciferous vegetables, milk thistle, and B vitamins to improve hormone clearance. Stress management : Adaptogens like ashwagandha or rhodiola to regulate cortisol. Blood sugar balance : Diet strategies and nutrients like inositol, magnesium, and chromium. 2. Gut Healing For patients with GI-MAP findings of dysbiosis or leaky gut, therapies may include: Antimicrobial herbs  (oregano, berberine, garlic) to reduce harmful bacteria or yeast. Probiotics and prebiotics  to restore microbial diversity. L-glutamine and zinc carnosine  to repair the intestinal lining. Digestive enzymes or bitters  to improve nutrient absorption. 3. Nutrition & Diet for Clear Skin Dietary strategies focus on reducing inflammation and supporting skin repair: Removing acne triggers: dairy, sugar, refined carbs, and processed foods. Prioritizing anti-inflammatory foods: leafy greens, berries, turmeric, fatty fish, and flax or chia seeds. Including healthy fats: avocado, olive oil, walnuts, and omega-3s. Hydrating with filtered water and green tea for antioxidants. 4. Detoxification Support The skin is one of the body’s detox organs. Supporting the liver and lymphatic system reduces the burden on the skin. Strategies include: Herbal support (dandelion, burdock, milk thistle). Infrared sauna or sweating therapies. Dry brushing and lymphatic drainage. Whole foods like beets, leafy greens, and cruciferous vegetables. 5. Natural Skincare While internal therapies do the heavy lifting, topical care still matters. Naturopathic skin care emphasizes barrier-friendly products, such as: Oils like jojoba, rosehip, or argan. Gentle exfoliants like clay or oatmeal masks. Zinc oxide sunscreens. Avoiding parabens, synthetic fragrances, and harsh surfactants. This minimizes irritation and prevents further disruption of the skin’s microbiome. Stress, Sleep, and Lifestyle: The Hidden Factors in Acne Stress management is often overlooked in acne treatment , but it plays a critical role. Cortisol directly influences oil production and immune function. Chronic stress worsens hormonal imbalances and inflammation, making breakouts harder to control. Naturopathic strategies include: Adaptogenic herbs  (ashwagandha, holy basil, rhodiola) to regulate cortisol. Nutrient support : magnesium, B-complex vitamins, and omega-3 fatty acids. Lifestyle tools : meditation, yoga, breathwork, and time in nature. Sleep optimization : consistent routines, blue-light reduction, and calming nighttime practices. Better stress management not only calms acne but also improves overall energy, mood, and resilience. Case Example: Healing Acne with Root-Cause Medicine A 32-year-old woman presented with persistent cyclical acne along her forehead, cheeks and jawline. She had tried birth control, an IUD, topical creams, and even cosmetic treatments, but breakouts continued to occur month after month. Testing revealed: Elevated testosterone and poor estrogen clearance on the DUTCH test + a dysregulated cortisol pattern. Gut dysbiosis and mild leaky gut on the GI-MAP. Zinc and vitamin D deficiency on nutrient testing. Treatment focused on balancing hormones with herbal therapies, modified exercise routines to better fit her cortisol patterns, supporting estrogen clearance through diet + supplements, repairing gut lining, replenishing zinc, and removing dairy from her diet. Within four months, her cystic acne had reduced by over 70%. Within a year, her skin had cleared completely and she was confident without makeup for the first time in years. This case highlights how addressing root causes can provide long-lasting results where conventional therapies fall short. Spoiler alert, this case was me. Conclusion: Clear Skin Starts from Within Acne is not just a cosmetic issue—it’s a signal from your body that something deeper is out of balance. While conventional treatments may suppress symptoms, naturopathic medicine seeks to uncover and treat the underlying drivers, whether hormonal, digestive, inflammatory, or stress-related. Using advanced testing like the DUTCH test and GI-MAP to provide answers, not just prescriptions. By addressing the root cause and supporting whole-body health, we help patients achieve clear, healthy, and glowing skin—naturally. Ready to Heal Your Skin Naturally? If you’re tired of cycling through creams and prescriptions without lasting results, it may be time for a deeper approach. 📍 Book a consultation with Dr. Courtney Holmberg , ND ,  in downtown Toronto. Together, we’ll uncover the root cause of your acne and create a natural, personalized plan to support clear skin from the inside out. Give the Toronto Naturopathic Clinic a call to schedule your visit at 647 351 7282 , or book online virtually across Ontario. ✨ Healthy skin is possible—when you start healing from within.

Let's compare the two most common comprehensive stool tests available in Ontario When evaluating gut health, two commonly discussed stool testing options are the GI‑MAP®  (by Diagnostic Solutions Laboratories) and GI‑360™  (by Doctor’s Data). Though both deploy advanced lab techniques, they differ significantly in methodology, clinical scope, and the actionable insights they deliver. Here's a comprehensive comparison to help practitioners and clients decide which test suits their needs best. Testing Methodology & Scope GI‑MAP Based entirely on quantitative PCR (qPCR), analyzing DNA from bacteria, parasites, fungi, viruses, and H. pylori virulence markers, plus a limited set of stool chemistry markers (e.g. elastase‑1, steatocrit, IgA) Provides a single-sample profile; no multi‑day collection option. No need to avoid certian therapies/probiotics in advance. GI‑360 Combines multiplex PCR, microscopy/culture, and biochemical assays, offering a multi-method profile of pathogens, parasites, bacteria, yeasts, plus stool chemistries—including SCFA (acetate, butyrate, propionate, valerate), calprotectin, lysozyme, mucus, fat stain, lactoferrin, sIgA, occult blood, etc. Available in tiers: Profile (“gold”) : PCR + culture + parasi­tology + stool chemistries. Essentials : PCR + parasitology. Microbiome : PCR only—closest to GI‑MAP in method, but misses stool chemistries and cultures What You Get: Key Markers & Clinical Value GI‑MAP gives: Comprehensive pathogen screening (incl. H. pylori virulence and resistance genes), bacterial and fungal DNA abundance. Digestive and immune markers: Elastase‑1, steatocrit, Secretory IgA, anti‑gliadin IgA for gluten sensitivity GI‑360 adds: Detailed stool chemistries: SCFA (short‑chain fatty acids), calprotectin, mucus, lysozyme, fat, carbohydrate digestion markers, pH, fibres, and occult blood—providing functional digestion and inflammation insights Culture-based identification and antibiotic sensitivity : for bacteria and yeasts, which GI‑MAP lacks. Dysbiosis Index: compares your microbiome to reference norms to estimate deviation from what is considered a healthy standard. Comparison Summary of GI-MAP vs GI-360 Feature GI‑MAP GI‑360 PCR for bacteria/parasites/fungi/viruses ✅ ✅ H. pylori virulence & resistance genes ✅ ✅ Stool chemistries (SCFAs, calprotectin, mucus, etc.) Limited ✅ Culture & sensitivity testing ❌ ✅ Multi-day collection option ❌ ✅ Dysbiosis Index/diversity metrics Limited ✅ SIBO diagnosis ❌ ❌ Pros & Cons Pros of GI‑MAP Highly sensitive detection of low‑abundance organisms via qPCR Quick turnaround, widely used by naturopathic practitioners. Identifies pathogens, including H. pylori virulence factors. Single-day sample, not requiring much avoidance or preparation. Cons of GI‑MAP Prone to false positives due to low specificity (one study found ~80% sensitivity but only ~26% specificity) Variability in biomarkers from split‑stool samples—even from the same specimen—raises concerns about reproducibility (ie would multiple samples show the same information) Costly (~ 600 CAD) Limited stool chemistry metrics and no culture data. Pros of GI‑360 Comprehensive coverage: includes PCR, culture, microscopy, stool chemistries, SCFA panels and Dysbiosis Index. Multi-day collection enhances reliability, especially for parasitology. Culture results include sensitivity testing, valuable for choosing antimicrobials or herbs. Generally considered more clinically robust and academically accepted in functional medicine settings Cons of GI‑360 Higher cost (can reach ~$650-700 CAD) depending on tier Culture-based sections can lead to false negatives due to collection methods, sample collection & transportation Requires multi-day sample collection, more prep in terms of treatments and supplements to avoid, and more complex shipping requirements How to Order a GI-MAP or GI-360 Through Our Clinic If you're based in Ontario, here’s how to access GI‑MAP or GI‑360 through our naturopathic clinic in : Book a consultation : We evaluate your symptoms—digestive distress, inflammation, IBS or SIBO-like issues—and determine the most suitable test. We place the order : We handle the clinician authorization, arrange the lab kit, and ensure proper preparation for collection. Test kit & sample collection : GI‑MAP: single‐sample home collection stool kit, shipped directly back to the lab GI‑360: 1–3 day home collection, depending on tier, shipped directly back to the lab (Monday through Thursday), same day pick up Turnaround : GI‑360 + GI‑MAP are usually reported within ~14 days. Detailed review : We interpret results with you, mapping the root cause to your symptoms with appropriate protocols—diet, targeted herbs/supplements, motility support, and lifestyle adjustments. Follow-up & retesting : If needed (and only when needed), we repeat the test (or portions of it) after treatment to monitor progress and adjust strategies. GI-MAP or GI-360: When to Use Each When GI‑MAP might suffice: You want rapid pathogen screening (e.g., H. pylori, parasites, yeast) using PCR only. You don’t need full SCFA, inflammation, or culture data. You require a single-sample test due to convenience or cost constraints. When GI‑360 is preferable: You need comprehensive insight into digestion, inflammation, functional biomarkers, and ecosystem dysbiosis. You want culture-based sensitivity results to guide treatment selection. You’re looking for stool chemistry context (SCFA, calprotectin, lysozyme, etc.). Both GI‑MAP  and GI‑360™  stool tests offer valuable insights into gut ecosystems, yet serve different clinical purposes: GI‑MAP  is streamlined, PCR-based, and best suited for focused pathogen screening when speed and simplicity matter. GI‑360  delivers a fuller gut health picture—including functional biomarkers, SCFA profiles, dysbiosis scoring, and culture-based pathogen sensitivity data—ideal for complex or persistent digestive conditions. We consider the GI‑360 Profile  the most comprehensive option for evaluating root causes of gut dysfunction. However, GI‑MAP can be a helpful, quicker tool in specific cases. Getting Started at Our Toronto Naturopathic Clinic Looking to order comprehensive stool testing? Book an appointment at our Toronto Naturopathic Clinic here . Start with a thorough review or you concerns, health history and current symptoms to determine which form of testing is right for you. Testing is ordered in the initial visit (when necessary). Once results are reported, get a customized natural treatment plan that addresses the root causes to your stool test findings. Call:   (647) 351-7282 Practice:  Dr. Courtney Holmberg, ND – Toronto Naturopathic Doctor www.courtneyholmbernd.ca

Polycystic Ovary Syndrome (PCOS) is one of the most common hormonal health conditions in women, affecting approximately 1 in 10 women of reproductive age . While many women first discover they have PCOS when trying to conceive, this condition impacts far more than fertility. Symptoms such as irregular cycles, acne, hair loss, unwanted hair growth, and weight struggles can significantly affect your health, confidence, and overall well-being—even if pregnancy isn’t a current goal. This guide will help you understand the root causes of PCOS , key lab testing to request, and evidence-based natural approaches to improve your symptoms and long-term health. What Causes PCOS? The exact cause of PCOS isn’t fully understood, but research points to a combination of genetic, hormonal, and metabolic factors . At its core, PCOS is a complex hormonal imbalance—typically involving: Excess androgens (male hormones like testosterone) Insulin resistance  (difficulty processing blood sugar effectively) These imbalances trigger a cascade of symptoms, which often include: Irregular or missed menstrual cycles (often >35 days apart) Ovarian cysts Unwanted hair growth on the face, chin, or body ( hirsutism ) Hair thinning or male-pattern hair loss on the scalp Acne (including cystic acne on the face, chest, or back) Darkened skin patches (neck, underarms, groin) Skin tags Weight gain and difficulty losing weight The Role of Insulin Resistance in PCOS Up to 70% of women with PCOS  experience insulin resistance. Insulin is the hormone responsible for moving sugar from your bloodstream into your cells to use for energy. When cells stop responding properly—a state called insulin resistance —your body compensates by producing even more insulin. This drives sugar storage as fat, disrupts hormone balance, and worsens PCOS symptoms. Over time, untreated insulin resistance increases the risk of: Type 2 diabetes Cardiovascular disease Non-alcoholic fatty liver disease Certain cancers , such as uterine or bladder cancer Why Fat Tissue Matters in PCOS Fat tissue isn’t just a passive storage site—it’s an active endocrine organ  that releases hormones and inflammatory signals. In healthy states, fat tissue produces hormones like leptin  (which helps regulate appetite) and adiponectin  (which reduces inflammation). However, in PCOS, fat cells can become enlarged or dysfunctional, producing inflammatory markers that worsen insulin resistance and hormonal imbalances. Essential Lab Testing for PCOS Proper testing is key to understanding your unique presentation of PCOS and guiding a personalized treatment plan. I recommend discussing these labs with your MD, endocrinologist, or naturopath: Cycle Day 3 Hormones : FSH, LH, Estradiol Mid-Luteal Progesterone : Day 21 or ~7 days after ovulation Androgen Markers : Free & total testosterone, DHT, DHEAS, SHBG Metabolic Markers : Fasting insulin, fasting glucose, HbA1C, lipid panel Thyroid Panel : TSH, free T4, free T3 Nutrient Markers : Ferritin, 25-hydroxy Vitamin D Cortisol : to assess stress response Prolactin : to rule out other hormonal disorders Natural Approaches to PCOS Management The cornerstone of PCOS treatment is addressing insulin resistance and inflammation , which often improves ovulation, cycle regularity, and other symptoms. Nutrition A tailored nutrition plan can help balance insulin levels, lower inflammation, and support weight management. Some approaches include: Low glycemic index diet Mediterranean-style eating Food insulin-demand approach  (focusing on foods that minimize insulin spikes) For some, keto  or intermittent fasting protocols may help—but these should be supervised to ensure hormonal and nutrient balance. Movement Exercise helps improve insulin sensitivity and reduce inflammation. Aim for a mix of: Strength training  (2–3x/week) Cardio  for metabolic health Gentle movement  like walking or yoga to manage stress and cortisol levels Key Supplements Evidence-based natural therapies can support insulin sensitivity, inflammation, and hormone balance: Inositol (Myo- and D-Chiro-Inositol) Supports insulin sensitivity and ovulatory function. N-Acetyl-Cysteine (NAC) Reduces oxidative stress and supports healthy ovulation. Vitamin D Higher doses (under medical supervision) may improve glucose metabolism and lipid profiles. Magnesium, Calcium, and Zinc Help reduce inflammation and support metabolic health. Probiotics Emerging evidence shows improvements in insulin resistance, inflammation, and cholesterol balance. Vitex (Chaste Tree) Supports cycle regularity by influencing dopamine and pituitary signaling, sometimes comparable to metformin in regulating cycles. Stress & Sleep Chronic stress raises cortisol, which worsens insulin resistance and disrupts thyroid and reproductive hormones. Incorporating stress management strategies —like meditation, deep breathing, or therapy—along with 7–9 hours of quality sleep  is crucial. The Bottom Line PCOS is more than a reproductive condition; it’s a metabolic and hormonal disorder  that affects your entire health. By focusing on root-cause treatment —balancing insulin, reducing inflammation, and supporting healthy hormones—you can take control of your symptoms and improve your long-term health outcomes. As you can see, PCOS is a complex, multifaceted syndrome. Managing PCOS symptoms and insulin resistance requires a multifaceted approach. If you suspect you have PCOS or are experiencing any of the symptoms of PCOS, please feel free to contact Toronto naturopath, Dr. Courtney Holmberg at 647-351-7282 to schedule a consultation today. References: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3277302/ https://www.ncbi.nlm.nih.gov/pubmed/28679142 https://www.ncbi.nlm.nih.gov/pubmed/28142296 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5296515/

Hormones play a critical role in regulating everything from energy levels to mood and reproductive health. By understanding your menstrual cycle and the nutrients your body needs at each phase, you can make food choices that support hormonal balance and overall well-being. Let’s break down the four phases of the menstrual cycle and explore the best foods for each stage, along with the nutrients that make them beneficial. Menstrual Phase (~ Days 1–5) This phase begins with your period when hormone levels (estrogen and progesterone) are at their lowest. The focus during this phase is replenishing lost nutrients and supporting energy levels. Key Nutrients: Iron : Replenish iron lost during menstruation. Vitamin C : Enhances iron absorption. Magnesium : Reduces cramps and supports relaxation. Best Foods to Balance Hormones: Leafy Greens : Spinach, kale, and Swiss chard are rich in iron and magnesium. Citrus Fruits : Oranges and grapefruits boost vitamin C intake. Pumpkin Seeds : A great source of magnesium and zinc, which supports mood and immunity. Bone Broth : High in minerals and soothing for digestion during this phase. Follicular Phase (~ Days 6–13) Estrogen begins to rise, and your body gears up for ovulation. This is the time to focus on foods that support energy and cellular function. Key Nutrients: B Vitamins : Aid in energy production and the development of ovarian follicles. Antioxidants : Protect cells and support egg quality. Best Foods to Balance Hormones: Avocado : Packed with healthy fats and B vitamins. Berries : Blueberries and strawberries provide antioxidants to protect against oxidative stress. Quinoa : A nutrient-dense carbohydrate that supports sustained energy. Nuts and Seeds : Almonds and sunflower seeds offer vitamin E, which is essential for skin and cellular health. Ovulatory Phase (~ Days 14–17) During ovulation, estrogen peaks, and luteinizing hormone triggers the release of an egg. This is a time to prioritize foods that reduce inflammation and support detoxification. Key Nutrients: Zinc : Promotes ovulation and reduces inflammation. Fiber : Helps eliminate excess hormones. Sulfur Compounds : Support liver detoxification. Best Foods to Balance Hormones: Cruciferous Vegetables : Broccoli, cauliflower, and Brussels sprouts aid in estrogen metabolism. Eggs : Provide choline, which is critical for cellular health. Salmon : High in omega-3 fatty acids to combat inflammation. Flaxseeds : Contain lignans, which help balance estrogen levels. Luteal Phase (~ Days 18–28) As progesterone rises, your body prepares for a potential pregnancy. You might experience PMS symptoms like cravings, bloating , or mood swings. Focus on calming, nutrient-dense foods. Key Nutrients: Magnesium : Eases PMS symptoms like cramps and anxiety. Vitamin B6 : Helps combat mood swings by supporting neurotransmitter production. Complex Carbs : Stabilize blood sugar and reduce cravings. Best Foods to Balance Hormones: Sweet Potatoes : Rich in complex carbs and vitamin B6. Dark Chocolate : High in magnesium and antioxidants (choose at least 70% cocoa). Chickpeas : A source of B6 and protein to curb cravings. Bananas : Help with bloating and provide a quick energy boost. Cycle-Syncing Tips for Success Stay Hydrated: Hormones affect fluid retention, so drink plenty of water throughout the cycle. Listen to Your Body: Cravings often signal a nutritional need. Opt for healthier alternatives to satisfy them. Track Your Cycle: Use apps or journals to monitor symptoms and align your diet with your hormonal needs. Conclusion Balancing your hormones with the right foods during each phase of your cycle can profoundly impact your mood, energy, and overall health. And truthfully. while timing these nutrients can be a lovely way to stay on track, I want to make it clear by nutritious foods at * any point * in your cycle is helping (quality of food > timing of food). By tailoring your diet to support your body's changing needs, you’ll not only feel better but also help optimize your hormonal harmony. To learn more about hormone balancing strategies, do not hesitate the schedule a visit with Toronto Naturopathic Doctor  Dr. Courtney Holmberg by booking online here  or reaching out for further assistance at 647 351 7282 (must be resident of Ontario). What are your go-to foods for hormonal health? Share your favourites in the comments!