Vitamin C eat too much will cause the following diseases: the first point, there will be abdominal distension, abdominal pain and gastrointestinal diseases, and accompanied by nausea, vomiting, etc., in the clinical more common. The second point, easy to induce gout, vitamin C oversupplementation will lead to metabolic problems, the body can produce a large number of uric acid, can not be discharged from the body in a timely manner, in the body accumulation will occur gout. The third point is that a large amount of vitamin C can stimulate the secretion of gastric juice in the stomach, leading to excessive secretion of gastric juice, causing damage to the gastric mucosa, causing gastric mucosal edema, bleeding, and so on, which induced gastritis, gastric ulcer and so on. In the clinic, vitamin C dosage should be in accordance with the instructions or follow the doctor’s instructions, do not eat by yourself haphazardly.