What is the effect of dietary fiber on digestive health?

Dietary fiber plays a crucial role in maintaining digestive health, and the choice indicating that it aids in digestion and promotes regularity accurately reflects its benefits. Fiber adds bulk to the stool and helps it move more efficiently through the digestive tract. This process can prevent constipation by ensuring that bowel movements are regular and easier to pass.

There are two types of dietary fiber: soluble and insoluble. Soluble fiber dissolves in water and can help regulate blood sugar levels and lower cholesterol, while insoluble fiber adds bulk to the stool and is particularly effective in preventing constipation. Together, these fibers contribute significantly to healthy digestion.

A diet rich in fiber also supports a healthy gut microbiome, further enhancing digestive health. When fiber is fermented by gut bacteria, it produces short-chain fatty acids, which can help reduce inflammation and promote gut health.

The other options suggest effects that are not consistent with the established benefits of dietary fiber on the digestive system. For example, claiming that fiber promotes constipation contradicts the wealth of research showing its role in preventing digestive issues. Overall, the evidence strongly supports the assertion that dietary fiber aids digestion and promotes regularity.