1, Jiannao Yizhi: Walnut is rich in linoleic acid glyceride, which can provide the matrix for the brain. In addition, trace elements such as zinc and manganese contained in walnuts are important components of pituitary gland in the brain. Regular consumption of walnuts can help supplement the nutrients needed by the brain and play a role in strengthening the brain and improving intelligence. ?

2. beauty beauty: Walnuts are rich in nutrition. Eating walnuts regularly can help nourish the skin and make it white, tender and smooth. Especially for the elderly, skin aging problems such as wrinkles appear due to aging and skin elasticity weakening. Eating walnuts can help enhance skin elasticity, beauty beauty. ?

3. Anti-aging: Walnut is rich in vitamin E, which is recognized as an anti-aging substance in the medical field. It can eliminate free radicals in the body, help body cells to avoid free radical damage, and maintain the vitality of cells. ?

4, anti-constipation: eating walnuts often can help moisten the stool and prevent constipation. Walnut is rich in walnut oil and crude fiber, which can help lubricate intestines, soften stools and promote intestinal peristalsis, thus achieving the purpose of preventing constipation.

5. Lowering blood sugar: The large amount of unsaturated fatty acids contained in walnuts can also effectively reduce the body's resistance to insulin, and at the same time, it can reduce the risk of type 2 diabetes. Eating walnuts regularly can effectively help reduce the body's blood sugar content. ?

6. Disease prevention: Walnuts also contain a lot of unsaturated fatty acids such as linoleic acid and linolenic acid, which can help purify blood, reduce cholesterol content in blood and effectively prevent cardiovascular and cerebrovascular diseases. In addition, people who are weak after illness, malnutrition, neurasthenia, arteriosclerosis and so on can eat walnuts to promote their health recovery. ?

7, help sleep: Walnut contains a considerable amount of melatonin can help the human body to sleep. Melatonin is a hormone that can help regulate people's sleep. It will secrete more at night to help people fall asleep. Eating walnuts can promote melatonin secretion and help improve sleep.

Second, the disadvantages of eating walnuts:

1, Walnut is a high-fat food, if you eat too much at a time, it will easily lead to indigestion. In addition, because walnut contains a lot of fat, it is easy to accumulate in the body if it is eaten in large quantities but cannot be fully utilized by the body, so people with hyperlipidemia and obesity must not eat too much at one time, otherwise it will increase the burden on the body.

2. Walnuts can't be eaten with pheasant and duck. Walnuts contain more fat, and eating more will affect digestion, so it is not advisable to eat too much at one time. In addition, in order to preserve nutrition, it is not advisable to peel off the thin brown skin on the surface of walnut kernel when eating. Eating too much can cause diarrhea. Patients with phlegm-fire asthma and cough, hyperactive fire due to yin deficiency and diarrhea in loose stool should not eat.

Extended data

Walnut is rich in nutritional value and has the reputation of "Long live the child", "longevity fruit" and "the treasure of health preservation". 86% of the fat in walnut is unsaturated fatty acid. Walnut is rich in copper, magnesium, potassium, vitamin B6, folic acid and vitamin B 1, and also contains fiber, phosphorus, nicotinic acid, iron, vitamin B2 and pantothenic acid. Every 50g of walnut contains 3.6% water, 7.2g of protein, 3 1 g of fat and 9.2g of carbohydrate.

Walnut kernel looks like a miniature brain, and its folds are like cerebral cortex. People in China have a tradition of "supplementing shapes with shapes", so the saying that eating walnuts can nourish the brain has spread. Children can improve their intelligence by eating more, while the elderly can prevent memory loss by eating more.

Baidu encyclopedia: walnut