A recent study has proved that Lycium barbarum can regulate the energy metabolism of human body and has a certain weight loss effect on some morbidly obese people. Drinking Lycium barbarum tea before meals every day is beneficial to reducing the body fat content and is very beneficial to women. Compendium of Materia Medica recorded the history that villagers in Qiu Nan, Penglai County liked to eat Lycium barbarum. It can be seen that the ancients paid attention to the longevity of medlar. Now Ningxia Lycium barbarum is the most famous, and Hebei, Gansu and Qinghai Lycium barbarum are also called excellent. Lycium barbarum is sweet in taste and flat in nature, and belongs to liver, kidney and lung meridians. It has the effects of invigorating kidney, replenishing essence, nourishing liver, improving eyesight, moistening lung and nourishing yin, and can be used for treating kidney yin deficiency, liver qi deficiency, weakness of lower limbs, dizziness and tinnitus, nocturnal emission, infertility, decreased vision and chlorosis.