Leek, also known as lazy food, longevity leek, flat food and so on. Many famous poets in ancient China mentioned leeks in their poems, for example, Du Fu, a poet in the Tang Dynasty, said, "Spring rains at night, and brown rice is cooked differently"; Su Shi, a poet in the Song Dynasty, said, "The east wind is cold and I want to taste spring vegetables." It can be seen that leeks have been loved and valued by our people since ancient times.

Leek is not only fresh and delicious, but also nutritious. According to the analysis, every 500g of Chinese chives contains more than 0/0g of protein/kloc-0, 30g of fat, 0/9g of carbohydrate, 280mg of calcium, 225mg of phosphorus, 65mg of iron, 95mg of vitamin C and 0/7.5mg of carotene/kloc-0 (among leafy vegetables, except day lily, Chinese chives have the highest content. Modern medical research has proved that leek not only contains more cellulose, which can increase gastrointestinal peristalsis, is beneficial to habitual constipation and is of great significance to the prevention of intestinal cancer, but also contains volatile oil and sulfur-containing compounds, which can promote appetite, sterilize and reduce blood fat. Therefore, it is beneficial to patients with hyperlipidemia and coronary heart disease.

Leek is also a traditional Chinese medicine, which has been widely used since ancient times. "Materia Medica" wrote, "Chinese chives warm the middle and lower the qi, tonify the deficiency, harmonize the viscera, and make people eat it, Yiyang". Compendium of Materia Medica also says that Chinese chives nourish the liver. Treat frequent micturition and enuresis. Amaranth is called "Cao Yang" in Pharmacopoeia because it warms the liver and kidney, helps yang to solidify sperm. Leek seed is an excitant, which has the functions of consolidating sperm, strengthening yang, tonifying kidney, treating leukorrhagia and warming waist and knees, and is suitable for impotence, nocturnal emission and polyuria. Grind leek seeds into powder. Take 15g with boiling water every morning and evening, which is effective in treating impotence. Oral leek root leaf soup can cure night sweats and spontaneous sweating.