Frequently Asked Questions about IBS and Gut Health


1. What is the best diet for IBS?

There is no single “IBS diet” that works for everyone. Some people benefit from first-line dietary advice (regular meals, limiting caffeine, reducing fatty foods), while others may need a low FODMAP diet. A CORU registered dietitian in Galway can assess your symptoms and guide you safely.

2. Is IBS the same as food intolerance?

No. IBS is a functional gut condition, meaning the bowel is sensitive but not structurally damaged. Food intolerances (like lactose intolerance) involve specific digestive issues. Sometimes the two overlap, which is why a qualified nutritionist and Irish dietitian can help distinguish between them.

3. Can stress cause IBS?

Stress doesn’t cause IBS, but it can worsen symptoms. This is due to the gut-brain axis, where stress hormones affect digestion. That’s why combining nutrition advice with stress management, sleep support, and psychological strategies often gives the best results.

4. Does the low FODMAP diet cure IBS?

The low FODMAP diet does not cure IBS, but it can significantly reduce bloating, abdominal pain, diarrhoea and constipation in up to 70% of people. It should only be done under the guidance of a dietitian, as it is restrictive and can affect gut bacteria if done long-term.

5. What foods should I avoid with IBS?

Common IBS triggers include:

  • Onions and garlic
  • Beans and lentils
  • Wheat-based bread/pasta (in sensitive individuals)
  • Fizzy drinks and artificial sweeteners (polyols)
  • Very fatty or spicy foods

But triggers vary. A registered dietitian in Galway can help identify your personal triggers while keeping your diet balanced.

6. Can probiotics help IBS?

Some people with IBS find relief with probiotics, but effects vary depending on the strain and individual. Dietitians can advise whether to try probiotics and how to choose evidence-based products. Supporting gut bacteria with prebiotics and fibre may also improve resilience.

7. When should I see a dietitian for IBS?

If you have ongoing bloating, constipation, diarrhoea, or abdominal pain, a CORU registered dietitian can help. It’s especially important if symptoms are affecting your daily life, or if you are considering restrictive diets like low FODMAP.

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