Generally speaking, people with colitis can eat fish, but it is necessary to avoid fried or deep-fried fish; instead, steamed or boiled fish should be consumed, as this is beneficial for the recovery from colitis. Patients with colitis should avoid other spicy and irritating foods such as strong tea, coffee, spirits, chili peppers, and mustard, etc., and try to avoid them as much as possible. It is important to eat more fresh vegetables and fruits, avoid overly coarse foods, and eat regularly and in moderation to prevent binge eating. Meals should be small and frequent, and one should chew slowly. At the same time, active follow-up with colonoscopy is necessary.