CHRONIC BLOATING: Causes, Testing, & Natural Treatments

You eat a healthy meal, and by mid-afternoon your pants feel tight. You wake up with a relatively flat stomach, but by evening you look several months pregnant. You've tried cutting out dairy, reducing gluten, drinking more water, taking probiotics, and maybe even eliminating entire food groups—but the bloating keeps coming back.

If this sounds familiar, you're not alone.

Bloating is one of the most common digestive complaints I see in clinical practice, particularly among women. It's also one of the most misunderstood. Many people are told their bloating is normal, that they simply need more fibre, or that it's "just IBS." While these explanations may occasionally be true, chronic bloating is often a sign that something deeper within the digestive system—or even the hormonal system—is out of balance.

The good news? Daily bloating is not something you simply have to live with.

As a naturopathic doctor with a focus in digestive and hormonal health, I view bloating as an important clue. Understanding what's driving your symptoms is the first step toward finding lasting relief.

What Is Bloating?

Bloating refers to a sensation of fullness, pressure, tightness, or swelling in the abdomen. It may occur with or without visible abdominal distension and can range from mildly uncomfortable to significantly disruptive.

Some people experience bloating only after eating, while others notice it gradually worsens throughout the day. For some, it is accompanied by excessive gas, burping, constipation, nausea, abdominal pain, or changes in bowel habits.

Because bloating can result from multiple underlying causes, identifying the pattern of your symptoms is often one of the most valuable clues when determining what's actually going on.

Common Symptoms That Often Accompany Bloating

Chronic bloating rarely occurs in isolation. Many people also experience:

• Excessive gas

• Burping

• Abdominal distension

• Constipation

• Diarrhea

• Food sensitivities

• Brain fog

• Fatigue after eating

• Nausea

• Abdominal discomfort or cramping

• Irregular bowel movements

• PMS related bloating

• Feeling overly full after meals

The combination of symptoms you experience can help point toward the underlying cause.

Constipation

One of the most common—and most overlooked—causes of bloating is constipation.

Many people assume they are not constipated because they have a bowel movement every day. However, constipation isn't defined solely by frequency. You can still be constipated if bowel movements are incomplete, difficult to pass, or if stool is moving too slowly through the digestive tract.

When stool remains in the colon longer than it should, bacteria continue fermenting undigested food, producing gas that becomes trapped within the digestive system. The result is often progressive bloating that worsens throughout the day and feels most noticeable by evening.

In clinical practice, I frequently see constipation linked to:

• Low dietary fibre intake

• Dehydration

• Hypothyroidism

• Chronic stress

• Poor gut motility

• Hormonal imbalances

• Gut microbiome dysfunction

Addressing the root cause of constipation is often one of the fastest ways to improve chronic bloating.

Food Intolerances and Food Sensitivities

Food intolerances are another common cause of persistent bloating.

Unlike food allergies, which involve an immediate immune response, food intolerances and sensitivities often produce delayed symptoms that can occur hours or even days after eating. This makes identifying triggers on your own incredibly challenging.

Common culprits include:

• Dairy

• Gluten

• Eggs

• Corn

• Soy

• Fructose containing foods

• Artificial sweeteners

  
  

Beyond digestive symptoms, food sensitivities may also contribute to:

• Brain fog

• Fatigue

• Headaches

• Skin concerns

• Joint pain

Many patients spend years unnecessarily restricting foods without knowing which ones are actually contributing to symptoms. Strategic testing can often provide much-needed clarity.

High FODMAP Foods

FODMAPs are fermentable carbohydrates that can be difficult for some individuals to digest and absorb.

When these carbohydrates reach the large intestine, bacteria rapidly ferment them, producing gas that contributes to bloating and discomfort.

Common high FODMAP foods include:

• Garlic

• Onions

• Wheat

• Apples

• Pears

• Legumes

• Certain dairy products

  
  

For individuals with IBS, SIBO, or gut dysbiosis, these foods can trigger significant symptoms.

A low FODMAP diet can sometimes be useful as a short-term therapeutic tool to identify triggers.

However, it should never be viewed as a long-term solution. The goal is to identify why these foods are causing symptoms rather than avoiding them indefinitely.

Irritable Bowel Syndrome (IBS)

IBS is one of the most common digestive conditions associated with chronic bloating.

In addition to bloating, symptoms may include:

• Abdominal pain

• Constipation

• Diarrhea

• Alternating bowel habits

• Excessive gas

• Food sensitivities

Although IBS is often described as a functional disorder, we now understand that many underlying factors can contribute to its development, including:

• Gut brain axis dysfunction

• Chronic stress

• Food sensitivities

• Gut microbiome imbalances

• Prior gastrointestinal infections

• SIBO

One of the biggest frustrations for IBS patients is that generic dietary advice rarely provides lasting improvement. Effective treatment requires understanding what is driving symptoms in the first place.

Small Intestinal Bacterial Overgrowth (SIBO)

SIBO is one of the most common root causes of bloating that often goes undiagnosed.

Normally, the small intestine contains relatively low levels of bacteria compared to the colon. In SIBO, bacteria migrate into the small intestine and begin fermenting food before it can be properly digested and absorbed.

This fermentation creates excessive gas production and can lead to symptoms such as:

• Bloating shortly after eating

• Abdominal distension

• Constipation

• Diarrhea

• Excessive gas

• Food sensitivities

• Nutrient deficiencies

One hallmark sign of SIBO is bloating that develops within 30 to 90 minutes after meals.

Because standard stool testing cannot identify SIBO, breath testing is often required to make an accurate diagnosis.

Gut Dysbiosis and Leaky Gut

The gut microbiome plays a central role in digestion, immunity, inflammation, metabolism, and hormone regulation.

When the balance of beneficial and harmful bacteria becomes disrupted, a condition known as dysbiosis can develop.

Factors that contribute to dysbiosis include:

• Antibiotic use

• Chronic stress

• Poor diet

• Infections

• Environmental toxins

• Long term medication use

Gut dysbiosis often contributes to bloating, excessive gas, irregular bowel habits, food sensitivities, and digestive discomfort.

In some cases, chronic inflammation may also contribute to increased intestinal permeability, often referred to as "leaky gut." When this occurs, partially digested food particles and bacterial byproducts may cross the intestinal barrier and trigger immune activation.

This can contribute to symptoms both inside and outside the digestive tract, including:

• Bloating

• Fatigue

• Brain fog

• Skin concerns

• Increased food reactivity

Hormone Imbalances

One of the most overlooked causes of bloating—particularly in women—is hormone imbalance.

Many women notice their bloating worsens during the week before their period, around ovulation, or during perimenopause.

Hormones influence:

• Fluid retention

• Gut motility

• Inflammation

• Digestive enzyme production

• The gut microbiome itself

In practice, I commonly see bloating associated with:

• PMS

• PMDD

• Estrogen dominance

• PCOS

• Endometriosis

• Perimenopause

• Chronic stress and cortisol dysregulation

Because hormones and digestion are so interconnected, addressing gut symptoms often requires looking beyond the digestive tract itself.

This is one reason many women find that digestive symptoms persist despite extensive dietary changes. If the hormonal driver isn't addressed, the bloating often remains.

Swallowing Excess Air

Although less complex than some of the causes discussed above, swallowing excess air can contribute significantly to bloating.

Common contributors include:

• Eating quickly

• Talking while eating

• Drinking through straws

• Chewing gum

• Carbonated beverages

While this may not be the sole cause of chronic bloating, it can certainly worsen symptoms when other digestive issues are already present.

What Causes Bloating After Eating?

One of the most common questions I hear is:

"Why do I get bloated immediately after eating?"

Bloating that occurs shortly after meals may be associated with:

• SIBO

• Food intolerances

• Digestive enzyme insufficiency

• Low stomach acid

• Gut dysbiosis

• Eating too quickly

• Swallowing excess air

The timing of your symptoms provides valuable information. Bloating that begins within an hour of eating often points toward different underlying causes than bloating that gradually develops throughout the day.

When Is Bloating a Sign of Something More Serious?

Most bloating is not dangerous. However, certain symptoms warrant prompt medical evaluation.

Speak with your healthcare provider if bloating is accompanied by:

• Unexplained weight loss

• Blood in the stool

• Persistent vomiting

• Fever

• Severe abdominal pain

• Family history of colon cancer

• Family history of ovarian cancer

Women experiencing persistent abdominal distension should also be evaluated to rule out gynecological causes.

Testing for Chronic Bloating

If you've been struggling with bloating for months or years, testing can often provide answers that diet changes alone cannot.

Depending on your symptoms, testing may include:

SIBO Breath Testing

Used to identify bacterial overgrowth within the small intestine.

Comprehensive Stool Testing

Advanced stool testing can assess:

• Gut bacteria balance

• Yeast overgrowth

• Parasites

• Inflammation

• Digestive function

• Intestinal permeability markers

Food Sensitivity Testing

Can help identify delayed immune reactions contributing to chronic digestive symptoms.

Hormone Testing

Particularly useful for women experiencing PMS, irregular cycles, perimenopause symptoms, or hormone-related bloating.

Natural Strategies to Reduce Bloating

Although treatment depends on the root cause, several foundational strategies can support digestive health.

Eat More Mindfully

Slow down when eating, chew thoroughly, and avoid rushing through meals.

Stay Hydrated

Adequate hydration supports digestion, bowel regularity, and healthy gut motility.

Move Your Body Daily

Physical activity stimulates intestinal contractions and helps move gas and stool through the digestive tract.

Address Constipation

If constipation is contributing to your bloating, addressing the underlying cause is essential.

Reduce Gut-Disrupting Factors

Minimizing highly processed foods, chronic stress, unnecessary antibiotic use, and excessive alcohol can help support a healthier microbiome.

Identify the Root Cause

Perhaps the most important step is determining why you're bloated in the first place. While temporary solutions may provide short-term relief, lasting improvement requires understanding the underlying driver.

Bloating Every Day Isn't Normal—And It Is Often Treatable

If you're dealing with bloating after meals, a constantly bloated stomach, excessive gas, or digestive discomfort, know that these symptoms are not something you simply have to accept.

Chronic bloating is often linked to underlying digestive or hormonal imbalances that can be identified and addressed with the right investigation and treatment approach.

For us as Toronto-based Naturopathic Doctors, digestive health is one of the core pillars of care. Through comprehensive assessment, advanced functional testing, and evidence-informed naturopathic medicine, I help patients uncover the root causes of their bloating and create personalized treatment plans designed for long-term results.

You shouldn't have to plan your life around your digestive symptoms.

Relief is possible when the right cause is identified, and the right support is in place.

Book an appointment with Dr. Courtney Holmberg to begin uncovering the root cause of your bloating and start feeling comfortable in your body again.

Book an appointment online, or explore virtual care if you're outside of Toronto.