FODMAP food guide
Is oat flour low FODMAP?
FODMAP score
20
Low FODMAP
Yes — Oat Flour is low FODMAP in normal servings and is generally well tolerated by people with IBS.
FODMAPs present
Low-FODMAP serving
1/4 cup (about 30g)
Becomes high FODMAP at
2/3 cup or more (80g+)
Low-FODMAP in modest amounts like rolled oats; large baking quantities add fructans.
Seen a different rating somewhere else?+
Usually it's a portion difference, not a disagreement. This page scores oat flour at a serving of 1/4 cup (about 30g); at 2/3 cup or more (80g+) 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.