Which type of carbohydrate is resistant to digestion and contributes to dietary fiber?

Cellulose is a type of carbohydrate that is resistant to digestion and plays a significant role in dietary fiber. It is a polysaccharide made up of long chains of glucose molecules that form a rigid structure, primarily found in the cell walls of plants. Unlike starch, which can be broken down by enzymes in the body, cellulose remains intact as it passes through the digestive system. This resistance to digestion is what classifies cellulose as a form of dietary fiber.

Incorporating cellulose into the diet contributes to various health benefits, including promoting regular bowel movements, aiding in weight management, and potentially reducing the risk of certain diseases. The human body lacks the enzymes necessary to break down cellulose, which is why it provides bulk to the diet and helps in maintaining digestive health.