If you live with irritable bowel syndrome (IBS), you have probably been told to "try cutting things out." Without a structure, that usually ends with a shrinking list of safe foods and no clear answers. The low-FODMAP approach is different: a temporary, step-by-step process designed to find your triggers.
What are FODMAPs?
FODMAPs are types of carbohydrates that some people absorb poorly. In the gut they draw in water and are fermented by bacteria, which can cause bloating, gas, pain and changes in bowel habits in people with a sensitive gut. The name stands for Fermentable Oligosaccharides, Disaccharides, Monosaccharides And Polyols.
Common high-FODMAP foods include wheat, onion, garlic, certain legumes, some fruits (such as apples and pears), milk and some sweeteners.
The three phases
1. Elimination (usually 2–6 weeks)
High-FODMAP foods are swapped for lower-FODMAP alternatives to see whether symptoms improve. Planning matters here, so that fibre, calcium and overall variety don't drop.
2. Reintroduction
FODMAP groups are reintroduced one at a time, in increasing amounts, while you track symptoms. This is where you learn what actually affects you and how much you can tolerate.
3. Personalisation
Well-tolerated foods return to your diet and trigger foods are kept at amounts that work for you. Most people end up far less restricted than they expected.
Lebanese-friendly swaps
- Swap garlic-heavy toum for garlic-infused olive oil, which carries the flavour without the FODMAPs.
- Use the green tops of spring onions instead of onion in tabbouleh and stews.
- Try modest portions of canned, rinsed chickpeas, which are often better tolerated than home-cooked ones.
- Choose lactose-free laban or aged cheeses over fresh milk.
Common mistakes
- Staying in the elimination phase for months
- Skipping reintroduction and never finding your real triggers
- Removing foods based on internet lists rather than your own symptoms
- Starting before a doctor has ruled out other conditions
Should you do it alone?
Research and clinical guidelines generally recommend doing low-FODMAP with a qualified dietitian, because the process is detailed and an unnecessarily restrictive diet can affect nutrition and your gut microbiome. Our IBS Reset Program guides you through each phase with personalised meal plans and regular check-ins.
This article is for general education and is not a substitute for individual medical advice. See a doctor if you have red-flag symptoms such as unexplained weight loss, rectal bleeding or night-time symptoms.