A second group was given groceries and recipes to help them follow a low-FODMAP diet, which included foods like rice, potatoes, quinoa, wheat-free bread, lactose-free dairy products, fish, eggs, chicken, beef and various fruits and vegetables. Dr. Nybacka said they were also encouraged to eat slowly, have regular, small meals, and limit other foods and drinks that could trigger symptoms.
The last group received groceries and recipes to follow a low-carbohydrate, high-fat diet, which focused on foods like beef, pork, chicken, fish, eggs, cheese, yogurt, vegetables, nuts and berries.
After four weeks, 76 percent of those in the low-FODMAP group and 71 percent of those in the low-carbohydrate group reported significant reductions in their I.B.S. symptoms