It is usually not recommended to take vitamin C and milk together, because vitamin C is mainly an acidic pharmacological component, which will cause secondary failure of the drug when it encounters milk, and will also cause loss and loss of protein content in milk. Therefore, both will reduce the efficacy of the drug, reduce the role of both the vitamin C supplement, but also reduce the absorption and digestion of protein in milk. Therefore vitamin C and milk, it is recommended to take them only at an interval of about one hour. In addition, vitamin C should not be taken at the same time as many other drugs, which can cause some damage and irritation to the gastric mucosa. In addition to the fact that taking it with milk can cause some damage and irritation to the gastric mucosa, it should not be taken at the same time as food that irritates the stomach. In addition, people with peptic ulcers should not take vitamin C on an empty stomach, and vitamin C should not be taken orally in large quantities for a long time.