Drinking green juice in moderation can do more good than harm to people who are in good health. However, if you drink green juice in excess for a long time, the ingredients inside may cause certain effects on your body. Especially for people with weak constitution and certain diseases, or the purchase of green juice with poor safety is more likely to cause some harm. 1, abnormal digestive function: green juice is rich in dietary fiber, if the normal digestive function of people drinking green juice for a long time a large number of intestinal peristalsis is likely to cause chronic diarrhea, affecting the intestinal absorption function. People with weak gastrointestinal function should reduce the intake of green juice; 2, blood sugar fluctuations: green juice has a certain function to assist in regulating blood sugar, but if the blood sugar is usually low, or has taken hypoglycemic drugs, drinking green juice in large quantities for a long time can easily lead to hypoglycemic symptoms; 3, elevated blood potassium: green juice is rich in potassium, and drinking green juice for a long time can promote metabolism. However, patients with hyperkalemia should not oversupply potassium, especially those with renal insufficiency, which can aggravate hyperkalemia. 4. Bacterial infection: Since some of the green juice production process is not perfect disinfection measures, and green juice is usually brewed with warm or cool water, so if the green juice contains bacteria, long-term drinking is prone to infection, causing fever, diarrhea and other symptoms. Although drinking green juice in moderation every day is good for replenishing dietary fiber, vitamins and other trace elements, it is not suitable for people with kidney disease and weak gastrointestinal function.