Fiber

The average diet contains far less than the 25 to 30 grams of fiber needed for good health, according to the University of Maryland Medical Center. Fiber keeps your digestive system working normally, encourages regular bowel movements and prevents constipation. Fiber also helps reduce cholesterol levels, which can lower your risk of heart disease and stroke. A 1/2 cup serving of Brussels sprouts supplies 2 grams of fiber.