Seeds and nuts. Seeds and nuts may cause irritation in your colon and lead to pain, which is why you should not eat them with diverticulitis. Try to avoid them as much as possible. Some nuts include peanuts, pistachios, cashews and almonds, as well as seeds such as those of sunflower, pumpkin, caraway and sesame.What foods are bad for diverticulitis?
Certain fruits like apples, pears and plums should be avoided with diverticulitis. These foods are also high FODMAP foods but for a different reason. These fruits are high in fructose, a naturally occurring sugar in fruits.