Cellulose is a complex carbohydrate found in the cell walls of plants and serves as an important source of insoluble dietary fiber. Although humans cannot digest cellulose, it plays a crucial role in maintaining digestive health by promoting bowel regularity and preventing constipation.
In supplements, cellulose is often used as a capsule shell, thickener, or tablet binder due to its natural, non-reactive properties. It adds bulk to the digestive tract, which can help with appetite control and gut motility, and supports healthy microbiota by aiding in the passage of food through the intestines.
