Stummy

Is watermelon low FODMAP?

High FODMAP, usually limited

Watermelon is high FODMAP and is usually limited during the elimination phase.

High FODMAP
FructoseMannitolFructan

Last reviewed October 24, 2026

Watermelon on a low FODMAP diet

  • Leave watermelon out during the elimination phase, which usually lasts two to six weeks.
  • Use one of the lower-FODMAP swaps below instead.
  • High FODMAP doesn't mean forever: during reintroduction, many people find they tolerate some high FODMAP foods in smaller amounts.

Which FODMAPs are in watermelon

Fructose: Excess fructose means the food has more fructose than glucose. That extra fructose is absorbed less efficiently and can draw water into the bowel. Read more about fructose malabsorption.

Mannitol: Mannitol is a polyol (sugar alcohol) found in some vegetables such as mushrooms and cauliflower. It is poorly absorbed and can draw water into the bowel. Read more about polyols and foods that cause bloating.

Fructan: Fructans are chains of fructose found in wheat, garlic, onion and some vegetables. People can't fully digest them, so they reach the large intestine, where gut bacteria ferment them. Read more about high FODMAP foods to avoid with IBS.

Lower-FODMAP swaps

More fruit

Common questions

Is watermelon low FODMAP?

Watermelon is high FODMAP and is usually limited during the elimination phase. It contains excess fructose and mannitol and fructans.

Which FODMAPs are in watermelon?

Watermelon contains excess fructose and mannitol and fructans. Excess fructose means the food has more fructose than glucose. That extra fructose is absorbed less efficiently and can draw water into the bowel.

Can I have watermelon during the low FODMAP elimination phase?

It's usually best left out during elimination and tested later, during reintroduction.

What can I use instead of watermelon?

Lower-FODMAP options include pineapple, kiwi and oranges.

How do I test watermelon during reintroduction?

Watermelon belongs with the excess fructose group, which is often tested with honey or mango. Test one group at a time, starting small and increasing over a few days, and note how you feel.

Category

Fruits & Dried Fruits · Fruit

FODMAP levels in the Stummy database are based on published FODMAP research and describe typical servings. Your own tolerance can differ. Looking for something else? Check any food in the FODMAP checker or browse the full food list.

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