What type of fiber is cellulose categorized as?

Cellulose is categorized as insoluble fiber because it is a complex carbohydrate that the human digestive system cannot break down. This type of fiber plays a critical role in digestive health by adding bulk to stool and helping to prevent constipation. It passes through the gastrointestinal tract largely intact, which can help with regular bowel movements and overall gut health.

Insoluble fiber, like cellulose, generally comes from the cell walls of plants and provides structure. This characteristic makes it important for maintaining the integrity of plant cells and contributes to the plant's rigidity. Foods that are high in insoluble fiber include whole grains, nuts, seeds, and many vegetables.

While there are other forms of fiber such as soluble fiber, which dissolves in water and can be fermented by gut bacteria, cellulose's primary classification as insoluble sets it apart in its function and attributes. This distinction helps individuals understand the different roles that various types of fiber have within a balanced diet.