Vitamin C, as a nutrient element, does not have the efficacy of drugs, but as a drug has the efficacy of treating diseases such as scurvy. In our daily life, many foods are rich in vitamin C, such as kiwifruit, cabbage and so on. As a nutrient element, vitamin C has no medicinal effects and cannot be used to treat diseases or relieve uncomfortable symptoms. However, vitamin C has antioxidant, anti-aging and iron absorption effects in the body. Moderate intake of vitamin C-containing foods is beneficial to the health of the organism. When vitamin C as a drug, such as vitamin C injection, vitamin C granules, vitamin C tablets, etc., with the treatment of scurvy, adjuvant treatment of various acute and chronic infectious diseases and purpura and other effects. If a large amount of vitamin C preparation is applied for a long time, it is easy to induce oxalate stones, diarrhea, nausea and vomiting and other side effects. If you are allergic to this product, it should be prohibited. It is recommended to eat more fresh fruits and vegetables to supplement the natural vitamin C. However, when used as a medicine, it should be taken under the guidance of a doctor in order to prevent inducing uncomfortable symptoms in the body.