Du Fu Poetry Day: "Night rain cuts spring leek, yellow beams in the new kitchen", and was praised by poets in the Yuan Dynasty: Leek is more gassy than meat and vegetables, and it is rich in meat, rich in fragrance and spreads across ginger and gui, aftertaste and melon eggplant". Leek cures Yang deficiency and kidney cold, hence the name aphrodisiac; treatment of impotence, also known as Yang grass cut and resurrected, does not require cultivation from time to time, and likes to be called lazy dish. "Compendium of Materia Medica" records: "In the dish, this thing is the most warm and beneficial, it should be eaten often" and "Annotation of Materia Medica" It is believed that "health is hard and blood is good, cooked is sweet and tonic, and stagnation guides". Modern medical research has proved that leek is also beneficial to patients with high blood fat and coronary heart disease. In addition to the role of cellulose, volatile essential oils and Sulfur compounds have a hypolipidemic effect.

　　Another report: Leek has an excitatory effect on the uterus and inhibits dysentery, typhoid, Escherichia coli, Proteus, and Staphylococcus aureus. Leek seeds nourish the liver Kidneys, warm waists and knees, impotence and solid essence can also be used to cure impotence dreams, urination, enuresis, waist and knees, soreness and cold pain, take down, Lin turbidity. But Zhang Shiwan pointed out in "Bei Jing Feng Yuan": "Leek If the quasi-kidney is overworked, it is better for those who cannot accept the camera. If the yin deficiency is hot and the yang is not in contact, the yin mismatch is misused. Probably the function of the leek, all scattered in Xinwen, the child is astringent, and the strong fire is the halberd. "These teachings are also applicable to leeks, so all patients with internal heat of yin deficiency, sores and eye diseases should be avoided.