Seven Principles of Clean Eating. We asked âclean eatingâ expert, Diane Welland, to break down the main principles of this buzz-worthy trend.
Dietary fibers can act by changing the nature of the contents of the gastrointestinal tract and by changing how other nutrients and chemicals are absorbed. Some types of soluble fiber absorb water to become a gelatinous, viscous substance which is fermented by bacteria in the digestive tract. Some types of insoluble fiber have bulking action and are not fermented. Lignin, a major dietary insoluble fiber source, may alter the rate and metabolism of soluble fibers.
Dietary fiber is a type of carbohydrate that comes from plant foods. It's found in fruits, vegetables, grains, nuts and beans. Two types of dietary fiber exist -- soluble and insoluble fiber. The first absorbs water in your digestive tract and swells to create a gel. Soluble fiber may help lower your cholesterol and regulate blood sugar, according to MayoClinic.com.