What is one of the primary health benefits of dietary fiber?

Dietary fiber offers several health benefits, and one of its primary advantages is its ability to regulate blood sugar levels. Soluble fiber, in particular, can slow down the absorption of sugar in the bloodstream. This helps to prevent spikes in blood glucose levels, making it especially beneficial for individuals with insulin resistance or diabetes. By promoting stable blood sugar levels, dietary fiber can help reduce the risk of developing chronic diseases associated with high blood sugar, such as type 2 diabetes and heart disease.

In contrast to the other choices, increasing cholesterol absorption is not a benefit of dietary fiber; rather, certain types of fiber can help to lower cholesterol levels. Enhancing protein synthesis is primarily a function of adequate protein intake rather than fiber. Additionally, dietary fiber typically contributes to satiety, which can actually help in regulating calorie intake rather than increasing it. These aspects highlight the significance of fiber in maintaining overall health, particularly in metabolic regulation.