Plantago asiatica is a pure natural plant fiber source, can absorb several times its weight of water, the formation of jelly-like viscous material, increase the water content of feces and volume, compared to other plant fibers, plantago asiatica water absorption degree is better, can be softened feces, to avoid the production of constipation and the formation of gel has a calming effect, but also to achieve weight loss and less to eat purpose.　　This product is Plantago asiatica L. or Plantago depressa Willd. for the plant before the plant family before the dry mature seeds. The ears are harvested in summer and fall when the seeds are ripe, dried in the sun, the seeds rubbed out, and the impurities removed. Plantago depressa is also known as psyllium.　　Characteristics of this product is elliptic, irregular oblong or triangular oblong, slightly compressed, about 2mm long, about 1mm wide, the surface of the yellow-brown to black-brown, with fine wrinkles, one side of the gray-white concave dotted umbilicus. The texture is hard. Gas slightly, taste faint.　　Sexual flavor and attribution of sweet, slightly cold. Attributed to the liver, kidney, lung and small intestine meridians.　　Functions and Indications: Clearing heat and inducing diuresis, seeping dampness and opening gonorrhea, brightening the eyes and expelling phlegm. It is used for edema and distension, heat drenching and astringent pain, summer dampness and diarrhea, eye redness and swelling, phlegm-heat cough.　　Native to Iran and India, psyllium seed is used in traditional therapies to treat symptoms such as constipation, ulcers and high blood pressure. As the psyllium seed shell is rich in water-soluble fiber, water will expand to form dozens of times the gel mass, can increase the sense of fullness, reduce calorie intake and can maintain stool moisture and softness, promote normal intestinal emptying. The U.S. Food and Drug Administration (FDA) in 1998 statement announced that psyllium soluble fiber can reduce the risk of cardiovascular disease.　　A large amount of information shows that fiber can not only prevent gastrointestinal diseases, but also can prevent some fatal diseases, studies have pointed out that, such as the lack of dietary fiber, will increase the food residue stays in the intestinal tract time, and increase the generation of cancer-causing factors and their contact time with the intestinal mucosa, easy to lead to colorectal cancer or other lesions of the chances of suffering, on the other hand, if there is a moderate amount of fiber, may change the microbial species and number of the intestine, and because of the fiber, it is possible to reduce the risk of cardiovascular disease, and also to reduce the risk of cardiovascular disease. On the contrary, if there is an appropriate amount of fiber, it may change the type and number of microorganisms in the intestines, reduce the concentration of carcinogens or harmful substances due to the absorption and water retention of fiber, and accelerate their discharge due to the promotion of intestinal peristalsis, reduce the time of contact with the intestinal wall mucosa, and prevent or reduce the rate of colitis and other intestinal disorders.　　In Europe and the United States, psyllium is often added to the high-fiber breakfast as a fiber additive, a published in the American Journal of Clinical Nutrition (American Journal of Clinical Nutrition), by the University of Kentucky researchers to conduct experiments, but also found that psyllium can also lower cholesterol, to reduce the risk of heart disease has clinical significance. The study allowed patients with hyperlipidemia to eat 10.2 grams of psyllium seed fiber per day for eight weeks, and also designed a set of low-fat diets, so that they no longer eat too much fat.