What is the primary function of dietary fiber?

Dietary fiber plays a crucial role in maintaining digestive health and regulating the body's sugar levels. The primary function of dietary fiber is to aid in digestion by adding bulk to the stool, which promotes regular bowel movements and helps prevent constipation. It also supports a healthy gut microbiome by serving as food for beneficial gut bacteria.

Additionally, dietary fiber helps regulate the absorption of sugars in the bloodstream, which can contribute to better blood sugar control. By slowing down the digestion of carbohydrates, fiber helps prevent spikes in blood sugar levels after meals, making it beneficial for individuals managing diabetes.

While some other components in food serve to provide energy or enhance flavor, dietary fiber does not directly provide energy as it is not digestible. Instead, it contributes to overall health by promoting digestive efficiency and moderating carbohydrate absorption.