Lycium barbarum is rich in vitamins, which can supplement human nutrition. It is also rich in mineral elements and high in potassium, which can protect cardiovascular and cerebrovascular diseases and lower blood pressure. Lycium barbarum also has the functions of reducing blood fat, regulating metabolism, nourishing liver and kidney, improving eyesight, resisting aging, nourishing blood and calming nerves, strengthening bones and muscles, moistening lung and relieving cough, and is especially suitable for the elderly. It also has the effects of strengthening body constitution and prolonging life, and can also be used for dizziness, soreness of waist and knees, nocturnal emission, cough, and decreased vision caused by yin deficiency of liver and kidney.