NOT JUST FOOD: WHY DIET ALONE CAN’T FIX IBS

The Tummy Clinic | November 18th, 2025

Most people with IBS start with food. They cut things out, experiment with diets, and search for “triggers.” But despite all the effort, symptoms often stay.

This leads to frustration and confusion — and sometimes deep fear around eating.

But here is the truth:

IBS isn’t caused by food, and diet alone cannot fix it.

Why Food Gets Blamed

Food is immediate and visible. It becomes the easiest thing to blame — and the internet reinforces this with messages like:

  • “Fix your gut with these foods!”
  • “Avoid these 10 foods!”
  • “Try this protocol!”

This creates fear, rigidity, and confusion.

IBS Isn’t a Food Problem

IBS is a Disorder of Gut–Brain Interaction, meaning:

  • the gut is more sensitive
  • nerves fire more easily
  • stress and pace affect digestion
  • motility becomes unpredictable
  • emotional load amplifies symptoms

Food can influence symptoms — but food does not cause IBS.

Why Restriction Often Makes Things Worse

  1. Fear increases — fear alone sensitizes the gut.
  2. Under-eating disrupts motility.
  3. Cold/raw foods increase tension in some people.
  4. Focusing only on food ignores bigger drivers.

Restriction usually shrinks life, not symptoms.

What Actually Helps

  • Warm, regular meals
  • Steady routines
  • Gentle nervous system regulation
  • Motility support
  • Patterns that build safety and predictability
  • Support from a dietitian who understands DGBIs

The TTC Approach

We help patients eat:

  • regularly
  • calmly
  • without fear
  • with warmth
  • with flexibility
  • with confidence

We do not recommend extreme restrictions or treat food as the root cause.

Final Word

Food matters, but it isn’t the whole story.
You don’t need perfect eating.
You don’t need to fear food.
You need support for the whole system.

TTC can help you build a calmer, more confident relationship with eating.

Frequently Asked Questions

Managing IBS with diarrhea can be challenging, but making the right food choices can help. Here’s what works for many people with IBS:

  • Low FODMAP diet: This dietary approach helps reduce symptoms like diarrhea, bloating, and stomach pain. It involves removing certain foods and gradually reintroducing them to see which ones trigger your symptoms.
  • Easy-to-digest foods: Stick with foods like plain rice, cooked carrots, zucchini, and lean proteins (e.g., chicken, fish) to ease digestion.
  • Avoiding triggers: Steer clear of fatty, spicy, or fried foods, as well as dairy and caffeine. These can worsen symptoms for many people with IBS.

If you’re unsure which foods work for you, consulting with a healthcare provider can help you create a personalized meal plan.

Bloating, gas, and stomach pain are common in IBS. These symptoms often result from:

  • Gas buildup: Undigested food or fermentation in the intestines can cause gas and bloating.
  • Gut motility issues: In IBS, food may move too quickly or slowly through the digestive tract, leading to discomfort.
  • Food sensitivities: Certain foods like high FODMAP foods can cause bloating or pain.

Managing these symptoms typically involves diet modifications, stress management, and finding the foods that work best for your body.

IBS constipation can be tough, but there are ways to improve bowel movements:

  • Increase soluble fiber: Foods like oats, bananas, and carrots can help soften stool.
  • Stay hydrated: Drinking plenty of water helps keep things moving.
  • Exercise regularly: Physical activity helps stimulate digestion.

If these strategies don’t work, gentle laxatives or stool softeners might be considered, but always under the guidance of a healthcare professional.

Certain foods can make IBS symptoms worse, including:

  • High FODMAP foods: These include foods like onions, garlic, certain fruits (e.g., apples, watermelon), and dairy.
  • Fatty foods: Rich, greasy foods often cause discomfort for those with IBS.
  • Caffeine and alcohol: These can irritate the digestive system and increase symptoms like diarrhea or bloating.

By tracking your food intake and symptoms, you can start to identify which foods are causing flare-ups and work toward a personalized plan.

Constant constipation in IBS can be caused by:

  • Low fiber intake
  • Dehydration: Not drinking enough water can make stool hard and difficult to pass.
  • Stress: Emotional stress often affects digestion and can contribute to constipation.

If constipation persists despite lifestyle changes, consider speaking with a healthcare provider for further assessment and potential treatment options.

Severe bloating can occur when:

  • Gas is trapped in the intestines due to difficulty digesting certain foods or fermentation.
  • Slow motility: In IBS, the digestive system may move food too slowly, leading to bloating.

To manage bloating, consider reducing high FODMAP foods and incorporating more digestive-friendly meals. Stress management techniques like yoga or mindfulness can also help reduce bloating by calming the nervous system.