What is the function of dietary fiber in the body?

Dietary fiber plays a crucial role in maintaining digestion and bowel health. It is a type of carbohydrate that the body cannot digest, meaning it passes through the gastrointestinal tract largely intact. This characteristic of fiber contributes to important digestive processes.

When fiber is consumed, it adds bulk to the stool, which helps to regulate bowel movements and prevent constipation. Additionally, certain types of soluble fiber can help to soften the stool, making it easier to pass. Fiber also promotes a healthy gut microbiome by serving as a food source for beneficial gut bacteria, which can aid in fermentation processes and contribute to overall gut health.

Furthermore, a diet high in fiber has been associated with a reduced risk of developing various gastrointestinal disorders, such as diverticulitis and certain types of cancer. Overall, fiber's ability to assist with digestion and promote bowel health underscores its importance in a balanced diet.