What type of fiber cannot be absorbed by the body?

Insoluble fiber is the type of fiber that cannot be absorbed by the body. This kind of fiber adds bulk to the digestive system, helping to move food through the gastrointestinal tract. It is known for its role in promoting regular bowel movements and preventing constipation.

Insoluble fiber is found in whole grains, nuts, seeds, and the skins of fruits and vegetables. While it cannot be digested or absorbed, it is essential for maintaining a healthy digestive system and can help prevent certain gastrointestinal disorders.

In contrast, soluble fiber, which dissolves in water, can be fermented by bacteria in the colon and may have various health benefits, such as lowering blood cholesterol levels and stabilizing blood sugar. Dietary fiber encompasses both soluble and insoluble types, indicating all forms that contribute to a healthy diet. Functional fiber consists of isolated or processed fibers that also have health benefits but may not naturally occur in food.