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What are FODMAPs?

The six types of fermentable carbs behind most bloating — in plain English.

3 min read

FODMAPs are short-chain carbohydrates that the small intestine absorbs poorly. When they reach the large intestine, gut bacteria ferment them, producing gas, and they pull water into the bowel. For most people that's harmless. For people with IBS or a sensitive gut, it can mean bloating, pain, gas, diarrhea or constipation.

The six groups Gutprint tracks

  • Fructans – wheat, rye, onion, garlic, leeks
  • GOS – beans, lentils, chickpeas, cashews
  • Lactose – milk, soft cheese, yogurt, ice cream
  • Excess fructose – honey, apples, mango, agave
  • Sorbitol – stone fruit, avocado, sugar-free gum
  • Mannitol – mushrooms, cauliflower, sweet potato

Why it's personal

Almost nobody reacts to all six. One person can eat apples freely but bloats after garlic; another is the opposite. That's why Gutprint connects what you eat with how you feel, instead of handing you a generic "avoid" list.

Portions matter

Many foods are fine in small amounts and only cause trouble in larger servings. Gutprint's meal scans estimate portions so the ratings reflect what's actually on your plate.

Find out what your gut reacts to

Gutprint turns your meals and symptoms into a personal trigger report. Get early access:

Free 7-day trial at launch. No spam — one email when we launch.

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