There are many benefits to taking vitamin C. First, vitamin C can strengthen the body’s immunity, kill many kinds of invading bacteria, and has a good repair effect on the body’s damage. Second, vitamin C, also known as ascorbic acid, can fight against scurvy. Thirdly, it is also able to whiten the skin and has certain benefits and curative effects to improve the body’s antiviral ability. But if you often take vitamin C, there are certain side effects and disadvantages. Vitamin C is an acidic vitamin, eating vitamin C every day will cause excessive acid secretion capacity of the gastric mucosa, excessive secretion of gastric acid from the gastric mucosa and produce side effects such as acid reflux, heartburn, nausea, vomiting and bloating. For patients with weakened barrier capacity of the gastric mucosa itself, it will also cause a certain burden on the gastrointestinal tract, forming gastric ulcers and ulcers in the duodenal bulb.