Is isomalt low FODMAP?

High FODMAP, usually limited

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

High FODMAP

MannitolSorbitol

Last reviewed October 24, 2026

Isomalt on a low FODMAP diet

Leave isomalt out during the elimination phase, which usually lasts two to six weeks.
Look for a low FODMAP alternative in the same food group, or check one in our FODMAP checker.
High FODMAP doesn't mean forever: during reintroduction, many people find they tolerate some high FODMAP foods in smaller amounts.

Which FODMAPs are in isomalt

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.

Sorbitol: Sorbitol is a polyol (sugar alcohol) found in some fruits and in "sugar-free" products. It is poorly absorbed and has an osmotic, water-drawing effect. Read more about polyols and foods that cause bloating.

Other sweeteners

Common questions

Is isomalt low FODMAP?

Isomalt is high FODMAP and is usually limited during the elimination phase. It contains mannitol and sorbitol.

Which FODMAPs are in isomalt?

Isomalt contains mannitol and sorbitol. 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.

Can I have isomalt during the low FODMAP elimination phase?

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

How do I test isomalt during reintroduction?

Isomalt belongs with the mannitol group, which is often tested with mushrooms. Test one group at a time, starting small and increasing over a few days, and note how you feel.

Isomalt in our guides

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