If you have colitis, try to eat less pineapple, as this food is relatively stimulating. Consuming it can irritate the intestinal mucosa, leading to congestion and edema of the intestinal mucosa, and aggravate colitis. Pineapple also has the effect of moisturizing the intestines and facilitating bowel movements, leading to an increase in the frequency of bowel movements which can worsen colitis. Therefore, patients with chronic colitis should pay attention to a light diet, avoid cold melons and fruits, and avoid fruits like pineapple. Bananas can also lubricate the intestines, leading to an increase in bowel movements, so they should also be avoided. Instead, you can eat some warm, easily digestible, and non-irritating foods to the intestines.