Walnuts are nuts and contain more fat. The danger of eating too many walnuts is that you will consume too much fat, and eating more for a long time will easily lead to an increase in body fat, which will increase the risk of obesity, elevated blood lipids, fatty liver, etc. Eating more at once may induce acute pancreatitis, and for allergic patients may also cause allergic reactions. Usually a medium-sized walnut of about 6 grams contains about 40 calories, with a fat content of about 60%-70%. Eating a large amount of walnuts can lead to an increase in blood lipid levels in the body, which may increase the risk of fatty liver, atherosclerosis, cardiovascular embolism and other diseases for patients with hyperlipidemia. In addition, Chinese medicine believes that walnuts are warm and sweet, and excessive consumption may increase the degree of dampness and heat in the body, which may cause symptoms of yin deficiency and fire such as loose stools. However, the unsaturated fatty acids contained in walnuts are clinically considered to be beneficial for inflammatory diseases, type 2 diabetes, and cardiovascular diseases, so patients are advised to consume 2-3 walnuts (no more than 25 grams) daily, but avoid walnuts that have been baked in salt or fried.