FODMAP food guide
Is banana low FODMAP?
FODMAP score
35
Moderate
In small portions — Banana is moderate in FODMAPs. Portion size decides whether it triggers symptoms.
FODMAPs present
Low-FODMAP serving
1 medium firm banana (100g)
Becomes high FODMAP at
just over 1 medium (110g)
Unripe banana is low FODMAP; oligo-fructans build up as it ripens, so limit ripe banana to about a third.
Seen a different rating somewhere else?+
Usually it's a portion difference, not a disagreement. This page scores banana at a serving of 1 medium firm banana (100g); at just over 1 medium (110g) it belongs in the high band. A source quoting the larger serve will call it high, and one quoting the smaller will call it low — the same food, measured at two different amounts.
Based on published FODMAP research and reviewed reference data. Informational only — not medical advice. Tolerance is individual; verify with a dietitian during the elimination phase.
How much is OK?
This food's verdict depends on the serving. The bands below show where the load builds, group by group.
Fructans
Holds low only while firm with green-tinged ends; as brown spots appear, starch converts and fructans rise fast — a soft, spotty banana follows the much smaller ripe-banana limits.
Bands reflect published FODMAP research for typical preparations — individual tolerance varies, especially mid-reintroduction.
Go deeper
Related foods — gentlest first
Green scores are the real swaps; matching numbers are just relatives, not alternatives.