What is the role of fiber in the diet?

Fiber plays a crucial role in digestive health, specifically in preventing constipation. It adds bulk to the stool, making it easier to pass through the intestines. This process promotes regular bowel movements and can help prevent issues such as constipation and diverticulosis. Unlike other nutrients, fiber is not digested in the small intestine; instead, it travels to the large intestine where it helps to maintain gut health by fostering a healthy gut microbiome and potentially preventing other digestive disorders.

While repairing tissues, aiding in blood circulation, and increasing energy levels are important functions in the body, these are primarily associated with proteins, vitamins, and carbohydrates rather than fiber. Fiber's primary function is centered on digestive health and maintaining regularity, which underscores its importance in a balanced diet.