Dietary fiber, also known as roughage, is the indigestible part of plant foods that passes through the body undigested. It is found in fruits, vegetables, whole grains, and legumes.
Dietary fiber has a number of health benefits, including promoting regularity, preventing constipation, and reducing the risk of heart disease and type 2 diabetes. It can also help you lose weight by making you feel fuller after eating.
Most people need about 25 grams of dietary fiber per day, but most Americans only consume about 15 grams per day. To increase your dietary fiber intake, eat more fruits, vegetables, whole grains, and legumes. You can also take a fiber supplement.