Is red onion low FODMAP?
No, it is high FODMAP.
Red onion is high FODMAP, because of its fructans. Instead: Green scallion tops or chives.
| Food | Red onion |
|---|---|
| FODMAP level | High FODMAP |
| FODMAP group | fructans |
| Category | Vegetables |
EAT THIS INSTEAD
Green scallion tops or chives
Green scallion tops or chives
Why red onion causes symptoms
fructans are short-chain carbohydrates that the small intestine absorbs poorly. They pull water in, then ferment in the colon — which is where the gas, bloating and cramping come from. The reaction is a matter of dose, and it does not always arrive the same day.
Tumzy has all 310 foods offline on your phone, and connects the ones you eat to how your gut actually feels — including reactions that land a day later.