Vegetables and ulcerative colitis
Cooked and peeled changes everything.

20 vegetables on this site, each with a flare verdict, a remission verdict, and the sources behind them. 5 are usually tolerated during a flare and 7 are usually worth avoiding until things settle.

Bell Peppers
Flare: CautionRemission: Usually OK

Broccoli
Flare: Usually avoidRemission: Caution

Brussels Sprouts
Flare: Usually avoidRemission: Caution

Butternut Squash
Flare: Usually OKRemission: Usually OK

Cabbage
Flare: Usually avoidRemission: Caution

Carrots
Flare: Usually OKRemission: Usually OK

Cauliflower
Flare: Usually avoidRemission: Caution

Corn
Flare: Usually avoidRemission: Caution

Cucumbers
Flare: CautionRemission: Usually OK

Garlic
Flare: Usually avoidRemission: Caution

Green Beans
Flare: Usually OKRemission: Usually OK

Kale
Flare: CautionRemission: Usually OK

Lettuce
Flare: CautionRemission: Usually OK

Mushrooms
Flare: CautionRemission: Caution

Onions
Flare: Usually avoidRemission: Caution

Potatoes
Flare: Usually OKRemission: Usually OK

Spinach
Flare: CautionRemission: Usually OK

Sweet Potatoes
Flare: CautionRemission: Usually OK

Tomatoes
Flare: CautionRemission: Usually OK

Zucchini
Flare: Usually OKRemission: Usually OK
All vegetables at a glance
Sorted alphabetically. "Usually OK" means most people, most of the time, not a guarantee.
| Food | During a flare | In remission | Why it's on the list |
|---|---|---|---|
| Bell Peppers | Caution | Usually OK | skin insoluble fiber, nightshade, fodmap color dependent |
| Broccoli | Usually avoid | Caution | cruciferous gas, insoluble fiber |
| Brussels Sprouts | Usually avoid | Caution | cruciferous gas, insoluble fiber |
| Butternut Squash | Usually OK | Usually OK | seeds |
| Cabbage | Usually avoid | Caution | cruciferous gas, insoluble fiber |
| Carrots | Usually OK | Usually OK | raw crunch |
| Cauliflower | Usually avoid | Caution | cruciferous gas, insoluble fiber |
| Corn | Usually avoid | Caution | hulls insoluble fiber, fodmap, gas |
| Cucumbers | Caution | Usually OK | skin seeds |
| Garlic | Usually avoid | Caution | fructans fodmap, raw irritant |
| Green Beans | Usually OK | Usually OK | no common concerns flagged |
| Kale | Caution | Usually OK | insoluble fiber, raw toughness |
| Lettuce | Caution | Usually OK | raw volume |
| Mushrooms | Caution | Caution | mannitol fodmap |
| Onions | Usually avoid | Caution | fructans fodmap, raw irritant |
| Potatoes | Usually OK | Usually OK | skin insoluble fiber, nightshade |
| Spinach | Caution | Usually OK | fodmap portion |
| Sweet Potatoes | Caution | Usually OK | skin insoluble fiber |
| Tomatoes | Caution | Usually OK | skin seeds, acidity, nightshade |
| Zucchini | Usually OK | Usually OK | seeds if large |