Fiber. Definition

Medical Definition: Fiber

In the case of food, fiber is the part of fruits, vegetables, legumes and whole grains that can not be digested. Fiber is classified as soluble (like oat bran) and insoluble (like wheat bran). Soluble fiber helps lower blood cholesterol and thus lowers the risk of heart disease. Good sources of fiber are beans, vegetables, whole grains and fruits. The relationship between fiber and cancer risk are inconclusive, but nonetheless recommended to eat these foods because they contain other nutrients that may help reduce cancer risk and because they involve other health benefits. In the case of the body, fiber refers to tissue made of long threadlike cells, such as muscle fiber or nerve fiber. dietary fiber includes a variety of plant carbohydrates that humans can not digest.

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