2. Although Lycium barbarum has the function of nourishing liver and kidney and improving eyesight, it should not be eaten more, otherwise it will lead to excessive internal heat, which is easy to nourish yin and hinder the stomach. Lycium barbarum has a certain hypoglycemic effect, which can be taken by diabetic patients in moderation, but it is not advisable to take it in large quantities at one time. Damp heat constitution, yin deficiency and excessive fire should not be taken too much, otherwise it may lead to aggravation of damp-heat in the body, dry mouth and other symptoms.

3. In addition, soaking Fructus Lycii in wine has the effects of nourishing liver and kidney and improving eyesight; Suitable for patients with liver and kidney deficiency, but the dosage should not be too large, and should be drunk according to the condition; It is not suitable for those with excessive damp-heat in the body and excessive fire due to yin deficiency.