Increase Fluid and Fiber
Anyone with diverticulitis who increases their fiber intake under this diverticulitis diet plan, should drink at least 1.5 liters (3 pints) daily.
Insoluble fiber needs fluid to form stools that are easily passed.
Medical advice may be to take a fiber supplement such as Metamucil daily (for soluble fiber from psyllium), and to use a cholesterol-lowering spread or margarine containing plant sterols. Fiber supplements provide about 2 to 3.5 grams of fiber per tablespoon, which is mixed with a quarter liter (8 ounces) of water before consuming.