What is the primary benefit of consuming dietary fiber?

Consuming dietary fiber primarily aids digestive health, which is a key reason it is recommended in diets. Fiber plays an essential role in maintaining regular bowel movements by adding bulk to the stool, which helps prevent constipation. It also contributes to a healthy gut microbiome, as certain types of fiber act as prebiotics, providing nourishment for beneficial gut bacteria. This can lead to improved digestion and absorption of nutrients.

Additionally, a high-fiber diet can help prevent digestive disorders such as diverticulitis and may play a role in maintaining a healthy weight by promoting a feeling of fullness, which can reduce overall food intake. While fiber does have other benefits, such as contributing to cardiovascular health and potentially reducing the risk of heart disease, its primary and most recognized role is in supporting digestive health.