Do all whole grains contain dietary fiber? What are other sources of fiber?
These questions seem simple, but they're not. Answering them, however, is important because they focus on two healthful eating goals: 1) Eat more whole grains and 2) Eat more dietary fiber.
Both are supported by research evidence. Eating sufficient whole grains, as part of a healthful eating plan, can protect against cardiovascular disease and help maintain a healthy body weight. Some research shows that eating enough whole grains can also reduce insulin resistance and Type 2 diabetes.