Is butternut squash low FODMAP?

Good to know

Butternut squash is moderate FODMAP because it contains both fructose and fructans. A few roasted cubes are usually fine, but a big bowl of butternut soup is a larger load.

Kabocha squash and spaghetti squash are low FODMAP alternatives with a similar feel in roasts and soups. If you make butternut soup, avoid the usual onion base and use leek greens and garlic-infused oil.

Butternut squash on a low FODMAP diet

• Small amounts of butternut squash are usually fine during elimination, but larger servings move into high FODMAP territory.
• Avoid pairing it with other moderate or high FODMAP foods in the same meal, which is where stacking matters most.
• If it bothers you, note it in a food diary and test it again during reintroduction.

Which FODMAPs are in butternut squash

Fructose: Excess fructose means the food has more fructose than glucose. That extra fructose is absorbed less efficiently and can draw water into the bowel. Read more about fructose malabsorption.

Fructan: Fructans are chains of fructose found in wheat, garlic, onion and some vegetables. People can't fully digest them, so they reach the large intestine, where gut bacteria ferment them. Read more about high FODMAP foods to avoid with IBS.

Common questions

Butternut squash in our guides

• Low FODMAP Vegetables: A Full List by Level
• Low FODMAP Soup Ideas (Without Onion or Garlic)
• How to start the low FODMAP diet