Lycium barbarum has sixteen functions, such as immunomodulation, anti-oxidation, anti-aging, anti-tumor, anti-fatigue, reducing blood fat, lowering blood sugar, lowering blood pressure, tonifying kidney, protecting liver, improving eyesight, caring skin, strengthening brain, expelling toxin, protecting reproductive system and resisting radiation damage. In addition, it can whiten the skin, because Lycium barbarum can improve the skin's ability to absorb oxygen. Lycium barbarum is a traditional precious Chinese herbal medicine and nutritional tonic. Lycium barbarum can effectively inhibit the formation of cancer cells and can be used to prevent and treat cancer. Lycium barbarum is not only a traditional Chinese medicine, but also a food and medicine prescribed by the Ministry of Health. Don't overdo any tonic, and Lycium barbarum is no exception. Generally speaking, it is more appropriate for healthy adults to eat about 20 grams of medlar every day; The therapeutic use can be increased to 30 grams. Eat Lycium barbarum regularly, not in large quantities at one time. In addition, the sugar content of Lycium barbarum is relatively high, containing 100 g 19.3 g. Therefore, the dosage of Lycium barbarum taken by diabetic patients should be weighed and carefully considered. Diabetic patients should use it with caution and should not overdo it. Now many animal experiments about the toxicity of Lycium barbarum prove that Lycium barbarum is a very safe food, which contains no toxin and can be eaten for a long time. Although Lycium barbarum has a good nourishing and therapeutic effect, it is not suitable for everyone.