Fresh walnuts refer to green walnuts, not the dried walnuts commonly found in the market. Since fresh walnuts are not air-dried, the content of various nutrients and water in them is higher than that of dried walnuts. Walnuts are rich in protein, fat, carbohydrates, as well as iron, phosphorus, calcium and other trace elements and phytochemicals. If consumed in excess, they tend to aggravate the metabolic burden on the gastrointestinal and liver. Due to their high fat content, they are not conducive to body contouring, aggravating acne symptoms, liver burden, and inducing cardiovascular and cerebrovascular diseases, etc. 1. Gastrointestinal performance: A higher consumption of fresh walnuts tends to aggravate the gastrointestinal burden, leading to indigestion, resulting in symptoms such as bloating, nausea, and diarrhea. As walnuts are warm fruits from the Chinese medicine point of view, excessive consumption can easily lead to fire; 2. Obesity: due to the high fat content of fresh walnuts, they are not suitable for excessive consumption during weight loss or body contouring. Excessive intake of fat, which is converted into energy in the body and not completely consumed, will be stored in the body in the form of fat, thus leading to obesity; 3, aggravate acne symptoms: If the patient himself has acne and other skin diseases caused by the secretion of oil glands, due to the high fat content of fresh walnuts, after consuming a large amount of fresh walnuts, will aggravate the secretion of oil in the skin, thus aggravating acne symptoms; 4 The fat content in fresh walnuts is high and needs to be metabolized in the liver. Too much consumption will increase the liver’s burden of digesting and decomposing fats. A large amount of fat can not be digested, will be stored in the liver cells, increasing the risk of fatty liver; 5, increase the incidence of cardiovascular disease: fresh walnuts in more fat into the body, will further aggravate the occurrence of high blood pressure, hypertension, coronary atherosclerosis and other cardiovascular diseases.