In the fat of walnut kernel, 71%is linoleic acid, and12% is linolenic acid. These unsaturated fatty acids can purify blood, remove impurities from blood vessel wall and consume saturated fat accumulated in the body, so they can effectively prevent cardiovascular and cerebrovascular diseases.

Second, the treatment of cholelithiasis

Cholelithiasis is mainly due to the combination of mucin in food, calcium ion in bile and unconjugated bilirubin. The pyruvate contained in walnut kernel can prevent mucin from combining with calcium ion and unconjugated bilirubin, and make it dissolve, fade and excrete. Therefore, patients with cholelithiasis might as well insist on eating walnuts every day, so it is possible to avoid the pain of surgery. Similarly, walnut kernel can also be used to treat urinary calculi.

Third, anti-aging

Vitamin E contained in walnut kernel can protect cells from oxidative damage by free radicals, which is recognized as an anti-aging substance in the medical field, so walnut is called "longevity fruit".

Fourth, replenish the brain and increase wisdom

Eating walnut kernel can nourish blood vessels, stimulate appetite, blacken beard and promote hair growth, which is beneficial to the brain and nerves, is an adjuvant for treating neurasthenia, can delay memory decline, and has the functions of nourishing brain and increasing intelligence.