Vitamin C, also known as ascorbic acid, can be taken to help replenish a deficiency of vitamin C in the body and to help prevent scurvy. However, if you want to take vitamin C, it is recommended to determine the dosage under the guidance of a doctor, do not take the medication at home privately to avoid the side effects of the drug. The benefits and side effects of taking vitamin C are as follows: 1. Benefits: 1. helps strengthen the body’s resistance: vitamin C is involved in the synthesis of adrenocorticotropic hormone in the body, which enhances resistance to the outside world and helps consolidate cellular tissues and strengthen bones; 2. helps prevent diseases: such as improving the absorption and utilization of ferrous salts in the body, treating or preventing anemia; preventing the oxidation of unsaturated fatty acids in the body, preventing the deposition of cholesterol in the arteries, and preventing anemia. prevent cholesterol deposition in the arteries, prevent atherosclerosis, dyslipidemia, cerebrovascular diseases, etc.; 3, help synthesize collagen: vitamin C and other antioxidant substances combined to increase skin elasticity, brighten skin tone, help antioxidant, prevent aging, beauty care, etc.; 4, maintain the stability of the blood vessel wall: such as hypertension patients, taking vitamin C helps maintain good elasticity of blood vessels, control blood pressure. Side effects: Long-term or overdose of vitamin C may cause some adverse reactions. 1, excessive secretion of stomach acid after taking, will stimulate the mucosa causing diarrhea, bloating, nausea, vomiting and gastrointestinal disorders, such as gastric ulcer; 2, long-term use may cause uric acid salts to rise, cause urinary stones, reduce cell phagocytosis, cause urine sugar or blood sugar false positive, etc., may also increase the chances of suffering from venous 3, long-term high dose suddenly stop, will cause vitamin C deficiency, causing resistance to reduce. Such cases should be slowly reduced until the dosage is discontinued; in addition, if pregnant women take vitamin C in high doses for a long time, it may cause abnormal fetal development. Therefore, it is recommended that patients who do not have vitamin C deficiency and can eat more fresh vegetables and fruits on a daily basis to meet the needs of the body should not take vitamin C preparations. And among them, fruits with heavy acidity have higher content than those without acidity, such as sour dates, citrus and hawthorn, etc. You can supplement vitamin C by consuming such fruits.