Fiber

Fiber is a type of carbohydrate found in plants that the human body cannot fully digest. It passes through the digestive system mostly intact, contributing to digestive health. It comes from various plant sources like fruits, vegetables, grains, and legumes.

Food manufacturers add fiber to products to increase their nutritional content and improve texture. It can add bulk, thicken foods, or help bind ingredients. You can find added fiber in many foods, including cereals, yogurts, and snack bars.

In the US, the FDA defines certain non-digestible carbohydrates as "dietary fiber" for nutrition labeling purposes. Fiber is widely recognized for its health benefits, such as supporting digestive regularity and helping to manage blood sugar and cholesterol levels. While specific types of fiber have been evaluated by various bodies, general dietary fiber is considered a beneficial component of a healthy diet. The 2025-2030 Dietary Guidelines for Americans recommend consuming adequate amounts of fiber from food.