Modern medical research believes that the phospholipids in walnuts have a good health care effect on the brain nerves. Walnut oil contains unsaturated fatty acids, which can prevent and treat arteriosclerosis. Walnut kernels contain zinc, manganese, chromium and other indispensable trace elements for the human body. In the aging process of the human body, the zinc and manganese contents gradually decrease. Chromium has the functions of promoting glucose utilization, cholesterol metabolism and protecting cardiovascular systems. The antitussive and asthmatic effect of walnut kernels is also very obvious. In winter, it is very effective for patients with chronic bronchitis and asthma. It can be seen that regular consumption of walnuts can not only keep fit but also resist aging. Some people often take tonics. In fact, eating a few walnuts every morning and evening is of great benefit, and is often better than taking tonics. Walnuts are a good food therapy product. Whether it is used as medicine, or eaten raw alone, boiled, dipped in sugar, or cooked, it has good effects of nourishing blood and qi, nourishing kidneys and essence, relieving cough and asthma, moistening dryness and laxative, etc. There are many ways to eat walnuts. Boiling walnuts with an appropriate amount of salt water, drinking water and eating the residue can cure kidney deficiency, low back pain, spermatorrhea, wilting, forgetfulness, tinnitus, and frequent urination. Walnuts, coix seed, and chestnuts can be cooked as porridge and eaten, which can cure symptoms such as frequent urination, spermatorrhea, loose stools, and diarrhea before dawn. Walnuts, sesame seeds and lotus seeds dipped in sugar can nourish the heart and brain, and can also cure night sweats. Eating walnuts, longan meat, and hawthorn raw can improve heart function. Walnuts are also widely used to treat neurasthenia, hypertension, coronary heart disease, emphysema, stomachache and other diseases.