Fiber is primarily made of which carbohydrate?

Fiber is primarily made of cellulose, which is a complex carbohydrate that forms the structural component of the cell walls in plants. This particular form of carbohydrate is not digestible by humans, which distinguishes it from other carbohydrates like starch and sugars (glucose and fructose) that the body can break down for energy.

Cellulose plays a vital role in dietary fiber, contributing to digestive health by aiding in bowel regularity and helping to maintain a healthy weight. Unlike starch, which is a digestible form of carbohydrate found in foods like potatoes and grains, cellulose remains intact through the digestive system, providing bulk and promoting gut health.

Understanding the structure and function of cellulose helps in recognizing its importance in nutrition and how it differs from other carbohydrate types, which are primarily energy sources rather than components of dietary fiber.