Cassia seed is a dual-purpose article published by the Ministry of Health. According to Shennong's Classic of Materia Medica, it has the functions of clearing liver, improving eyesight, moistening intestines, relaxing bowels, reducing blood fat and losing weight. Cassia seed contains not only sugar, protein and fat, but also steroids, chrysophanol and emodin, as well as essential trace elements such as iron, zinc, manganese, copper, nickel, cobalt and molybdenum. Emodin and chrysophanol contained in it have antiasthmatic, cholagogic, liver-protecting and antihypertensive effects on human body, and have certain antibacterial and anti-inflammatory effects. Among them, emodin glucoside, emodin anthrone and rhubarb methyl ether have the effects of lowering serum cholesterol and strengthening heart. Cassia seed has-hydroxyl group, which can synthesize complex with metal elements, which has great influence on the absorption of metal elements. Modern clinical application of cassia seed in the treatment of hyperlipidemia is satisfactory. Cassia seed is decocted in water or made into tablets. Cassia seed is commonly used for frying and grinding in folk, which has the health care function of preventing and treating diseases.

Cassia seed has antidiarrheal effect similar to rhubarb, which is harmful to human body if taken for a long time.