FODMAP food guide
Is oyster mushroom low FODMAP?
FODMAP score
10
Low FODMAP
Yes — Oyster Mushroom is low FODMAP in normal servings and is generally well tolerated by people with IBS.
Low-FODMAP serving
1 cup sliced (75g)
Unlike button mushrooms, oyster mushrooms are low FODMAP.
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.
Mannitol
The forgiving exception among mushrooms: serves up to about 2 cups (170g) have also tested low, and no firm upper limit has been published. A practical stand-in when button, portobello, and shiitake are off the table.
Bands reflect published FODMAP research for typical preparations — individual tolerance varies, especially mid-reintroduction.