Bitter gourd is a good medicine. Bitter gourd has roots, stems, leaves, flowers, fruits and seeds used as medicine. It is cold in nature and bitter in taste. Entering the spleen and stomach meridian, clearing away heat and relieving summer heat, improving eyesight and detoxifying. According to the "Resting Diet Spectrum", bitter gourd "has bitter taste, cold and heat, clear eyes and clear heart, nourish blood and soften liver when ripe, strengthen spleen and tonify kidney". "Life" records that bitter gourd can "clear away heat and relieve summer heat, eliminate fatigue, clear heart and improve eyesight, and invigorate qi and strengthen yang". "Compendium of Materia Medica" records bitter gourd's "clearing heart and improving eyesight, benefiting qi and reducing fever". Bitter gourd has the functions of lowering blood sugar and preventing and treating cancer. Bitter gourd is a kind of bitter and cold product, which contains momordicoside, momordicoside and so on. According to modern pharmacological experiments, bitter gourd has the function of lowering blood sugar, which is considered to be because bitter gourd contains an insulin-like substance, which is stronger than the existing hypoglycemic drug "metsulfuron-methyl", so bitter gourd is an ideal health food for diabetic patients. Bitter gourd has broad prospects in the prevention and treatment of cancer. In foreign countries, scientists injected lipoproteins in bitter gourd into mice with lymphoma, and the survival time of mice was prolonged, indicating that lipoproteins in bitter gourd can improve cellular immune function. Therefore, scientists predict that bitter gourd may become a new drug to treat cancer. Bitter gourd is rich in nutrition, and the ascorbic acid content in melons is outstanding, which is 14 times that of cucumber, 5 times that of wax gourd and 7 times that of tomato. According to the data of nutritional analysis, every100g of the edible part of bitter gourd contains 84g of water, 0.9g of protein, 0.2g of fat, 3.2g of carbohydrate, 0.6g of inorganic salt, 1. 1 g of crude fiber, 75.3kJ calorie and 0.08mg of vitamins A and B/kloc-. Momordica charantia fruit contains momordicoside, as well as glutamic acid, alanine, phenylalanine, proline and citrulline. The seeds and leaves of Momordica charantia contain a lot of momordicoside. Bitter gourd is named because of its special bitter taste. There are many different names in different places, such as melon, golden litchi, grape, frog, red girl, cold melon, gentleman's dish and so on. The "gall" in these names means that there are many irregular tumor-like protrusions on the surface of bitter gourd, and the fruit shape is mostly rotary fruit and oblong cone or short cone. The tender fruit is dark green or light green. Calling bitter gourd a "red girl" may mean that with the increase of physiological maturity, the epidermis turns from green to white and gradually turns yellow to red. When the fruit is ripe and red, the top is easy to crack, revealing blood-red pulp, which is wrapped with seeds, generally 20-50 per melon. Judging from the main function of bitter gourd is to clear away heat and detoxify, it seems more appropriate to call it "cold melon"