You can eat 3~5 pecans a day. It is not recommended to eat too much a day, so as not to cause gastrointestinal discomfort. Eating too much will also cause an increase in linoleic acid. Walnut is rich in nutritional value, and has the reputation of "Long live the son", "longevity fruit" and "treasure of health preservation". 86% of the fat in walnuts 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.

Nutritional value of Carya cathayensis;

1. Removing blood stasis: used for blood stasis amenorrhea, blood stasis abdominal pain, blood stasis mania, traumatic injury and blood stasis block.

2. Runchang laxative: it is difficult to solve the stool used for constipation. This product can relieve bitterness, disperse blood stasis, enter the liver meridian and divide blood, and has strong effects of promoting blood circulation, regulating menstruation, removing blood stasis and promoting tissue regeneration, and is suitable for patients with severe blood stasis. In addition, it also has the function of moistening intestines and relieving cough.

3. Walnut kernel contains more protein and unsaturated fatty acids necessary for human nutrition. These components are important substances in brain tissue cell metabolism, which can nourish brain cells and enhance brain function;

4. Walnut kernel can prevent arteriosclerosis and lower cholesterol; In addition, walnuts can also be used to treat non-insulin-dependent diabetes; Walnuts can also relieve pain, increase white blood cells and protect the liver of cancer patients.

5. Walnut kernel contains a lot of vitamin E, which can moisturize and blacken hair if eaten regularly, making skin moist, smooth and elastic;

6. Chewing some walnuts when you feel tired can relieve fatigue and stress.