Bloating Is Common, But It Shouldn't Be Ignored

By Dr. Parya Bahrampour, ND | EBL Naturopathic Clinic | Maple, Ontario

Do you wake up with a relatively flat stomach, only to look and feel completely different by the end of the day?

Maybe you're choosing looser clothes because you know you'll be bloated by dinner. You're unbuttoning your pants after meals, avoiding certain foods because you're worried about how your stomach will react, or wondering why you can look several months pregnant by the evening.

If this sounds familiar, you're not alone.

Occasional bloating after a large meal can happen. But feeling uncomfortable, distended, or excessively bloated after most meals shouldn't simply become something you learn to live with.

Bloating is a symptom, not a diagnosis.

And instead of constantly asking, "What food should I cut out next?" sometimes the more useful question is:

"Why am I bloated in the first place?"

There isn't one single answer. Bloating can be connected to what and how you're eating, constipation, gut motility, SIBO, food intolerances, changes in the gut microbiome, stress, or a combination of several factors.

Understanding what is driving your symptoms is the first step toward figuring out what your digestive system actually needs.

Here are a few possibilities.

SIBO

If you notice that you eat and become bloated soon afterwards, particularly if it happens along with a lot of gas or changes in your bowel movements, SIBO may be worth considering.

Small intestinal bacterial overgrowth (SIBO) occurs when there is an excessive amount or abnormal type of bacteria in the small intestine. These bacteria can ferment the food you eat and produce gases such as hydrogen and methane, which may contribute to bloating, constipation, diarrhea, and abdominal discomfort.²

Food Intolerances and FODMAPs

Ever feel perfectly fine after one meal and extremely bloated after another?

Certain foods may be harder for your digestive system to handle.

FODMAPs are fermentable carbohydrates found naturally in many foods. For people who are sensitive to them, they can contribute to bloating, gas, abdominal discomfort, and changes in bowel movements.³

Lactose intolerance, fructose intolerance, and celiac disease can also cause bloating.

This doesn't mean you should immediately start cutting out everything you eat. Restricting more and more foods without understanding the reason behind your symptoms can make eating unnecessarily complicated.

The goal is to figure out your triggers, not someone else's.

Constipation

Here's something that surprises many people:

You can poop every day and still be constipated.

If you're straining, having hard stools, feeling like you haven't completely emptied your bowels, or regularly feeling better after a bowel movement, constipation may be contributing to your bloating.

When things aren't moving efficiently through the digestive tract, gas and stool can build up and leave you feeling heavy and distended.

Your Gut Microbiome

Your digestive tract is home to trillions of microorganisms known as your gut microbiome.

These microorganisms play an important role in digestion and interact with many systems throughout the body. Changes in the gut microbiome may contribute to digestive symptoms, including bloating, in some people.⁴

But your microbiome is only one piece of the puzzle. Gut health is rarely about one "good" or "bad" bacteria.

Stress

Have you ever had a week where your stomach suddenly feels terrible even though you haven't changed your diet?

Stress may be part of the reason.

Your brain and digestive system are constantly communicating through the gut-brain axis. Stress can affect gut motility and change how sensitive your digestive system is to gas, pressure, and stretching.⁵

That's why digestive symptoms can flare during busy work weeks, travel, poor sleep, or emotionally stressful periods.

Supporting your gut isn't always just about what's on your plate.

So How Do You Figure Out What's Causing It?

This is where looking at the whole picture becomes important.

When does your bloating happen?

Is it immediately after eating or several hours later?

Do you wake up bloated, or does it gradually build throughout the day?

Are you constipated?

Does going to the bathroom make you feel better?

Are there certain foods that consistently trigger it?

Did everything start after antibiotics, a stomach infection, travel, or a stressful period?

Those details can provide important clues.

Sometimes testing can help us look deeper too.

Depending on your symptoms and health history, this might include SIBO breath testing, comprehensive stool testing, testing for H. pylori or celiac disease, lactose or fructose breath testing, or blood work.

The goal isn't to run every possible test. It's to choose the right tools based on your symptoms and what we're trying to understand.

Three Simple Things You Can Start Today

Slow down when you eat.
Try not to inhale lunch between meetings. Sit down, chew thoroughly, and give your digestive system some time to do its job.

Pay attention to patterns.
For one week, jot down what you eat, when you become bloated, and what your bowel movements are like. You may start noticing connections you hadn't seen before.

Take a short walk after eating.
Even 10 minutes of gentle movement after a meal can support intestinal motility and may help with that heavy, overly full feeling.

When Should You Get Bloating Checked?

If you occasionally feel bloated after a huge dinner, that's one thing.

But if you're planning your outfits around how bloated you'll be by the evening, unbuttoning your pants after meals, avoiding foods because you're afraid of how your stomach will react, or regularly looking several months pregnant by the end of the day, it's worth investigating.

You should also seek medical assessment if bloating comes with unexplained weight loss, blood in the stool, persistent vomiting, anemia, fever, difficulty swallowing, or significant new or worsening digestive symptoms.

You don't necessarily need another restrictive diet or another temporary fix.

Sometimes you simply need to start asking the right question:

Why am I bloated in the first place?

Once you understand what's contributing to the problem, you can start working toward a digestive system that feels a lot more predictable.

Ready to get to the bottom of your bloating?

Book a consultation at EBL Naturopathic Clinic

This article is for educational purposes only and does not replace individualized medical advice or assessment.

References

[1] Moshiree B, Drossman D, Shaukat A. AGA Clinical Practice Update on Evaluation and Management of Belching, Abdominal Bloating, and Distention: Expert Review. Gastroenterology. 2023 Sep;165(3):791-800.e3. doi: 10.1053/j.gastro.2023.04.039. Epub 2023 Jul 13. PMID: 37452811.

[2] Ghoshal UC, Nehra A, Mathur A, Rai S. A meta-analysis on small intestinal bacterial overgrowth in patients with different subtypes of irritable bowel syndrome. J Gastroenterol Hepatol. 2020 Jun;35(6):922-931. doi: 10.1111/jgh.14938. Epub 2019 Dec 17. PMID: 31750966.

[3] Halmos EP, Power VA, Shepherd SJ, Gibson PR, Muir JG. A diet low in FODMAPs reduces symptoms of irritable bowel syndrome. Gastroenterology. 2014 Jan;146(1):67-75.e5. doi: 10.1053/j.gastro.2013.09.046. Epub 2013 Sep 25. PMID: 24076059.

[4] Akkoyunlu DS, Celebi A, Gur B, Kanli A, Ugurtas C, Ozer T, Sarikaya NK, Keskin SE, Cine N, Savli H. Functional Abdominal Bloating Is Associated With Gut Microbiota Dysbiosis and Altered Intestinal Barrier Function: Experimental Evidence. In Vivo. 2025 Nov-Dec;39(6):3320-3332. doi: 10.21873/invivo.14130. PMID: 41167655; PMCID: PMC12588231.

[5] Foster JA, Rinaman L, Cryan JF. Stress & the gut-brain axis: Regulation by the microbiome. Neurobiol Stress. 2017 Mar 19;7:124-136. doi: 10.1016/j.ynstr.2017.03.001. PMID: 29276734; PMCID: PMC5736941.