Fiber plays an essential role in the human diet. Foods high in fiber help control blood cholesterol, improve digestion and prevent constipation and diverticulitis. Humans can ingest fiber naturally, from foods like bran, beans and produce, or by using supplements. Traditionally used as a laxative, consuming fiber, regardless of its form, is beneficial for all adults.
Psyllium
Psyllium is the active ingredient in many of the leading fiber supplements. Made from the husk of a seed, it contains a large amount of soluble fiber. Psyllium dissolves during the digestive process and is absorbed into the bloodstream, where it lowers total cholesterol and low-density lipoprotein (LDL) levels.
Inulin
Inulin is an insoluble fiber derived from chicory seeds. When consumed, it passes through the stomach undissolved and into the intestinal tract. Inulin feeds the intestinal bacteria, improving the function and health of the bowels. Inulin also has a positive effect in reducing the body's triglyceride count.
Cellulose
Cellulose's primary role is improving colon health. An insoluble fiber, cellulose passes directly through the stomach and intestines. Cellulose increases stool bulk, keeping the colon active and not allowing carcinogenic cells from taking root into the intestine. Cellulose, however, has no proven effect on cholesterol.
Wheat Dextrin
Wheat dextrin is water-soluble fiber that assists in maintaining colon health and lowering cholesterol. The compound works much in the same way as psyllium, lowering lipid and LDL levels in the blood stream. The difference is in the origin. Wheat dextrin is made from wheat starch.
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