Overview
About Butternut squash
Butternut squash is a sweet, gentle winter squash that most people assume is easy on the gut, but it is high FODMAP by the cupful because of the sugar alcohol mannitol.
A small side of a third of a cup is usually fine, while a big roasted bowlful can tip a sensitive gut into bloating and loose stools. It is otherwise a clean, strongly anti-inflammatory vegetable with no nightshade or histamine concerns.
Sensitivities
How Butternut squash scores
Watch for
What trips people up
- High FODMAP once the serving grows: the polyol mannitol builds up past roughly a third of a cup and can cause bloating, wind or loose stools
- Portion is everything here, so a small side is low FODMAP while a full roasted bowl is not, unlike a food that triggers at any dose
- High in lectins when raw, though thorough cooking, which squash always gets, brings that right down
Diet fit
Where it fits
Swap ideas
More alternatives
FAQ
Common questions about Butternut squash
Is butternut squash low FODMAP?
Only in small portions. Around a third of a cup is a low-FODMAP serve, but larger amounts are high in the polyol mannitol, which can cause bloating and loose stools. If you want a bigger portion, kabocha squash and spaghetti squash stay low FODMAP at more generous servings.
Why does butternut squash upset my stomach?
The likely reason is mannitol, a naturally occurring sugar alcohol that your gut does not fully absorb. It ferments and draws in water, so a large helping can bring on wind, cramps and looser stools even though the squash itself is otherwise easy to digest.
References
Read the background
Ratings reflect the Triggerbites ingredient database and may vary with portion size and preparation.