Leek
Leek is high in FODMAPs and Oligosaccharides. If you're sensitive to any of these, check it against your profile before eating.
Intolerances
- FODMAPsHigh
onion and garlic are the richest sources of fructans and stay high FODMAP even in tiny amounts, and cooking does not remove the water-soluble fructans. Garlic- or onion-infused oil keeps the flavour while staying low FODMAP, as fructans don't dissolve into oil.
- OligosaccharidesHigh
- Histamine (+liberators / DAO inhibitors)None
- TyramineNone
- SalicylateNone
- SucroseNone
- LactoseNone
- SorbitolNone
- FructoseNone
- NickelNone
- OxalatesNone
- GlutenNone
Intolerance levels are based on our documented scientific sources. See sources →
React to FODMAPs? Check these too
More in Vegetables
- Artichoke→
- Bamboo shoots→
- Beet→
- Black beans→
- Broccoli→
- Brussels sprouts→
- Cabbage→
- Carrot→
- Cassava→
- Cauliflower→
- Celery→
- Chicory→
Frequently asked questions
Which intolerances does leek affect?
leek is notable for FODMAPs and Oligosaccharides.
Does leek contain FODMAPs?
Yes — leek is high in FODMAPs. onion and garlic are the richest sources of fructans and stay high FODMAP even in tiny amounts, and cooking does not remove the water-soluble fructans. Garlic- or onion-infused oil keeps the flavour while staying low FODMAP, as fructans don't dissolve into oil.
Does leek contain Oligosaccharides?
Yes — leek is high in Oligosaccharides. Amounts vary by brand and recipe, so always check the label of the exact product.