What are the best foods to eat after a bad flare up of diverticulitis?

There does not seem to be much of an effect on food intake on diverticulitis. Want diet that lessens stools a bit or a lot depending. I would start with overall healthiest diet. The DASH diet. Should see effect on stools in 2 weeks.

We old time physicians still advocate avoiding harsh roughage in cases of convalescing sigmoid diverticulitis. In my opinion this especially includes popcorn &peanuts. The younger physicians & gastroenterologists:don't agree with this advice, but I have seen a number of patients through the years who felt that their diverticulitis was precipitated by ingesting these types of foods.