Psyllium husk comes from the crushed seeds of the Plantago ovata plant, an herb native to parts of Asia, Mediterranean regions of Europe, and North Africa. In addition to its traditional use for constipation, psyllium has also been used topically by herbalists to treat skin irritations, including poison ivy reactions and insect bites and stings. It has also been used in Chinese and Indian traditional herbal systems to treat bladder problems, diarrhea, hemorrhoids, and high blood pressure.
Similar to oats and wheat, psyllium is rich in soluble fiber. Traditionally, psyllium husk is used as a gentle bulk-forming laxative for constipation. Its ingredients include alkaloids, amino acids, oils, protein, tannins, flavonoids, and a variety of sugars and carbohydrates. It is used as a stabilizing and thickening agent in many salad dressings, soups, lotions, and creams. Psyllium seeds are oval-shaped, odorless, practically tasteless, and are coated with mucilage. Most commercial preparations consist of blonde psyllium. Another type of psyllium, called black psyllium, may also be used as a bulk laxative and carries the same risks as blonde psyllium, but is not typically found in commercial psyllium preparations.
Used as a dietary fiber, psyllium makes stools softer, which helps relieve constipation, irritable bowel syndrome, hemorrhoids and other intestinal disorders. When psyllium husk comes in contact with water, it swells and forms a gelatinous mass that stimulates the transport of waste through the intestinal tract. It is considered a good intestinal cleanserin that it speeds waste matter through the digestive system, shortening the amount of time toxic substances stay in the body and thereby reducing the risk of colon cancer and other diseases.
Psyllium encourages the growth of healthful, “friendly” intestinal bacteria such as Lactobacillus acidophilous and bifidobacteria which are helpful in regulating bowel movements.