For vitamin C, I believe we all are not unfamiliar with it and know that it is an indispensable element for the human body. Its functional roles in the body are mainly: i. bone metabolism and collagen fiber production; ii. promoting the utilization of iron, calcium and folic acid; iii. promoting the maintenance of immune function; iv. part of the whitening effect. Since vitamin C is so good and beneficial to the body, is it possible to take it every day? Are there any side effects of taking it for a long time? Today we will understand this problem. First, long-term use of 2 to 3g daily can cause scurvy after discontinuation of the drug. Vitamin C is known as ascorbic acid, has a good preventive and therapeutic effect on scurvy, but long-term use of vitamin C will cause the body to change the regulatory mechanism of vitamin C. After discontinuing the drug there will be a sharp lack of vitamin C and scurvy. Second, a small amount of vitamin C supplementation has a very good health care effect on the human body, can prevent scurvy and other deficiency diseases, but too much consumption will also reflect the toxicity, easy to appear poisoning symptoms are mild nausea, vomiting, diarrhea, etc.. Third, a large amount of application (daily dosage of 1g or more) can cause diarrhea, red and bright skin, headache, frequent urination (when the daily dosage of 600mg or more), nausea and vomiting, stomach cramps. Long-term application of large amounts of vitamin C may occasionally cause urate, cysteine salt or oxalate stones. Fifth, easily cause malnutrition, vitamin C has strong antioxidant properties, and many other nutrients can react, such as vitamin B12, a large amount of vitamin C consumption will cause a relative lack of other nutrients, causing anemia and other symptoms of malnutrition. Six, cause gastrointestinal dysfunction, this is because vitamin C also has a stimulating effect on the gastrointestinal, after consumption will stimulate the secretion of large amounts of gastric acid, long-term excessive intake will seriously affect the normal function of the gastrointestinal, stomach acid, indigestion and other symptoms. Seven, rash, too much vitamin C consumption will not only reduce the blood clotting function, but also cause a serious hemolytic reaction, with a large number of skin rash rash as the main performance. These are the side effects that can be easily induced by taking vitamin C every day, so you must be careful when taking it in the future. You should listen to your doctor’s advice and choose the most suitable dose and time to take it according to your health condition.