Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Diverticulitis is an extended pouch in lumen of intestine. So whenever there is indigestion/ infection or food intolerance ( gluten or lactose intollerance- which needs to be investigated & excluded/ diagnosed & treated. The diverticulum gets inflamed or infected to cause the symptoms. So management consists of - Exclusion/ diagnosis, treatment & avoidance of the triggering factors. Take bland food ( No or less spices, low fat & low fiber content ). - Avoid food found to be allergic to. Avoid fruits with small seeds & high fibers.Banana & melon are safer fruits. Avoid onion, garlic, pepper,broccoli, cabbage or cauliflower- as they tend to produce more gas. Avoid high fat dairy products( full cream milk or ice cream). Can take fat less milk, cheese. Vegetables allowed are- sweet potato, carrot, beat,peas, pumpkin , spinach, Cooked cereals like cooked cream of wheat /refined grains ,white bread, pasta etc. Hope I have answered your query. Let me know if I can assist you further.