Those with Crohn's disease should avoid fatty or fried foods, dairy products, raw fruits and vegetables, whole grains, and beans, suggests WebMD. These foods can worsen Crohn's disease flare-ups, which can lead to increased pain and discomfort.
Foods that trigger Crohn's disease flare-ups vary from person to person, explains WebMD. The way people prepare certain foods can prevent flare-ups from occurring. For example, steaming or boiling raw vegetables can allow those with Crohn's to eat vegetables without experiencing unpleasant side effects.
Creating a food diary can help prevent Crohn's disease symptoms or flare-ups from happening, reports Everyday Health. A food diary helps people maintain an acceptable daily caloric intake that contains the correct amounts of protein, vitamins and other nutrients needed to remain healthy. To ensure proper nutrition, those with Crohn's disease must identify food triggers and then find adequate food substitutes. For example, if dairy products trigger flare-ups, people can take a vitamin supplement that contains vitamin D and calcium instead.
Individuals who follow a low-residue diet to control Crohn's disease symptoms should avoid foods such as nuts, seeds, vegetables and raw fruit, states WebMD. A low-residue diet can reduce bowel movements, which can lead to fewer bouts of diarrhea and stomach cramps. A high-calorie liquid diet can also help reduce symptoms and flare-ups associated with Crohn's disease.