What are the 4 main fiber groups?

The four main fiber groups are soluble fibers, insoluble fibers, functional fibers, and total dietary fibers. Soluble fibers dissolve in water and can help lower blood cholesterol and glucose levels, while insoluble fibers do not dissolve and aid in digestion by promoting regular bowel movements. Functional fibers are non-digestible carbohydrates that have beneficial health effects and are often added to foods. Total dietary fibers encompass both soluble and insoluble fibers, contributing to overall health and wellness.