There’s no single diet that will help everyone with UC. The condition also changes over time, so your plan will need to be flexible, Use a small notebook to write down what you eat and drink and how it makes you feel, both good and bad. It takes time and patience, but it will help to tailor your diet.a low-residue diet or low-fiber diet 10-15 grams of fiber a day can help you go to the bathroom less often. following are found to aggravate ulcerative colitis usually- to be avoided are alcohol,caffeine,carbonated drinks,dairy products, if you’re lactose intolerant,dried beans, peas, and legumes,dried fruits,foods that have sulfur or sulfate,foods high in fiber,meat,nuts, crunchy nut butters, popcorn,products that have sorbitol (sugar-free gum and candies),raw fruits and vegetables,refined sugar, seeds,spicy foods. If you can t eat a balanced diet, you might need to take supplements like calcium, folic acid, and vitamin B12 for which you need to consult your dr as well as dietician who can together guide you properly. instead of three big meals it is better to go for frequent small meals. walnuts, olive oil, egg yolks, and coconut oil, Fish oil,yogurt are the foods that help in reducing the inflammation in the gut. instead of chapathi, ragi will help in this kind of problem. apart from timely diet you include daily 1/2hr exercise and meditation which are of benefit for any body and everybody.