Walnut kernel has medicinal value, in China's ancient medical books have clear records. Ming Li Shizhen's "Compendium of Materia Medica" states that "tonifying qi and nourishing blood, moistening dryness and transforming phlegm, benefiting the vitality of the three jiao, warming the lungs and moistening the intestines. Cure lung and moisten the intestines. Cure cold, wheezing and coughing, heavy pain in the waist and feet, heart and abdominal hernia, bloody diarrhea, intestinal wind, swelling and poison, ..." Song Liu Han "Kai Bao Ben Cao" contains "walnut (i.e., walnut) taste sweet, flat, non-toxic. Eating it makes people fat and healthy, moisturize muscle black hair, take the flesh burned to make black, not broken smoke, and turpentine, research Fu Fu scrofula sores". Tang Hua Meng Mou "food therapy herb" said that walnut kernel can "pass the meridians, black hair, often served with delicate flesh and bones moist. Cui Yuxi "food scripture" has "more food to facilitate urination, go five hemorrhoids" records. The evaluation of the book "Medical Compendium" is that it can "replenish the kidney, moisten the vital organs, solidify the essence, moisten the large intestine, pass the hot secret, stop cold diarrhea and false diarrhea." Visible, our people on the nutritional value of walnuts and medical functions, a very early in-depth understanding.

Walnut itself on the internal, external, injury, women, children, urinary, skin and other disciplines of dozens of diseases have therapeutic effects. Such as walnut oil for otitis, dermatitis and eczema, its products distillate on canker sores and other significant therapeutic effects; fried walnut kernels with sugar for the treatment of urinary stones has been affirmed by a number of clinical.

The Chinese medicine believes that walnuts are suitable for kidney loss and lumbar pain, lung deficiency, cough, asthma, constipation, post-disease weakness, etc., the walnut roasting to eat, can treat dysentery. Walnuts are beneficial to the cerebral nerves, is an adjunctive therapeutic agent for neurasthenia. Folk there are walnuts, ginger with the treatment of lung and kidney deficiency, chronic cough and phlegm wheezing (including chronic bronchitis in the elderly, coughing, emphysema, etc.), chronic bronchitis and asthma patients with excellent results. Walnut compartment with Gorgon fruit, Job's tear grains used together, treatment of kidney deficiency, frequent urination, spermatorrhea, impotence, acne and chronic septicemia and so on. Walnut oil can be used as a slow down agent, and can drive tapeworms. External skin diseases such as frostbite, ringworm, armpit odor, etc. also have curative effect.

Modern medical research, walnuts in the phospholipids have a brain brain effect. Walnut kernel high content of glutamic acid, aspartic acid, arginine has an important physiological function on the human body. Glutamic acid in the body can promote the synthesis of у-aminobutyric acid, thereby reducing blood ammonia, promote brain cell respiration, can be used to treat neuropsychiatric diseases such as neurasthenia, schizophrenia and cerebrovascular disorders caused by memory and language disorders and pediatric mental retardation.

Arginine in the body helps threonine cycle, in the human liver will be a large amount of ammonia synthesized urea, and then discharged by the urine in order to solve the ammonia toxicity, so arginine has a detoxification, restoration of liver function of the special physiological role.

Walnut kernel unsaturated fatty acids are mainly linoleic acid and linolenic acid, these two fatty acids not only have high nutritional value, but also has certain medicinal effects. Linoleic acid, linolenic acid is the body's synthesis of prostate and PGE essential substances, PGE has anti-thrombosis, lowering blood pressure, prevent platelet aggregation, accelerate cholesterol excretion, promote lecithin synthesis, anti-aging special effects. Nutritionists have proposed that each person should consume 1 to 2 grams of 1, omega-3 fatty acids per day to reduce the ratio of omega-6 and omega-3 fatty acids, which can effectively prevent and treat coronary heart disease, atherosclerosis and myocardial infarction, so that it is more conducive to health. And walnuts are the main source of ω-3 fatty acids.