FODMAP food guide
Is sandwich low FODMAP?
FODMAP score
65
Moderate
In small portions — Sandwich is moderate in FODMAPs. Portion size decides whether it triggers symptoms.
FODMAPs present
Low-FODMAP serving
1 round of sourdough spelt or GF bread with low-FODMAP fillings
Becomes high FODMAP at
2 slices of regular wheat bread with onion
Standard wheat bread is the main driver (Fructans); sourdough spelt or GF bread plus plain fillings (meat, hard cheese, salad) make it low.
Seen a different rating somewhere else?+
Usually it's a portion difference, not a disagreement. This page scores sandwich at a serving of 1 round of sourdough spelt or GF bread with low-FODMAP fillings; at 2 slices of regular wheat bread with onion 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.
Go deeper
Related foods — gentlest first
Green scores are the real swaps; matching numbers are just relatives, not alternatives.