is there any bad effect of eating more? Walnut kernel is rich in fatty oil, vitamin A, vitamin B1, vitamin B2, vitamin C, vitamin E and other nutrients, which are harmless to human body, and can prevent cell aging, strengthen brain, enhance memory and delay aging, and reduce the absorption of cholesterol in intestine. It is suitable for people with arteriosclerosis, hypertension and coronary heart disease. At the same time, it contains flax oleic acid, calcium, phosphorus and iron. It is an ideal skin care agent for human body, and it can be used to moisturize skin and black skin frequently. It has the functions of smoothing qi and enriching blood, relieving cough and resolving phlegm, moistening lung and tonifying kidney, etc. When you feel tired, chewing some walnut kernels can relieve fatigue and stress. People have known that eating walnuts often can reduce the cholesterol content in blood and reduce the possibility of cardiovascular diseases, so walnut kernels can be taken for a long time. But walnut kernel can't be taken too much at one time, otherwise it will produce phlegm and nausea. In addition, people with yin deficiency and excessive fire, loose stools, vomiting blood and nosebleeds should eat less or fast walnuts.