Parsley (Petroselinum crispum) is native to the Mediterranean coast. It is a vegetable with high nutritional content. The content of vitamin K may be the highest among all kinds of vegetables. In addition, vitamin A, vitamin C, carotene, folic acid and iron The content is also higher than that of ordinary vegetables. The leaves of parsley contain a variety of plant volatile oils, so it is often used as a seasoning or as a garnish for salads. The volatile oil extracted from the fruits (seeds) and roots of parsley contains flavonoids, which have diuretic detoxification and antiseptic effects. The large amounts of carotene, lutein, vitamin C, vitamin E, vitamin K and other vitamins and mineral ingredients contained in parsley have direct or auxiliary anti-oxidation, anti-inflammatory, anti-aging, freckle removal, immunity enhancement, cholesterol reduction, reduc blood pressure, anti-thrombosis, bone strengthening, etc. Parsley is beneficial to the prevention and treatment of cardiovascular diseases, retinal degeneration, arthritis and tumors.