Natural vitamin C generally refers to some fruits and vegetables containing vitamin C. Proper intake can enable the body to have a relatively stable intake of the nutrient, which can play a positive role in maintaining health and strengthening the body. Natural vitamin C is mainly found in some fruits and vegetables, vitamin C-rich fruits such as kiwis, lemons, cherries, oranges, passion fruit, etc., containing natural vitamin C vegetables such as tomatoes, spinach. Proper consumption can replenish the body with the required nutrients, maintain the normal function of the body and play a positive role in keeping the body healthy. However, the vitamin C in these fruits and vegetables is unstable and is easily destroyed, oxidized and decomposed during storage, processing and cooking. For patients with severe vitamin C deficiency, in addition to dietary adjustments, vitamin drugs should be taken under the guidance of a doctor. It is recommended to have a balanced diet with meat and vegetables. For patients with vitamin C deficiency, timely consultation, the doctor to choose the appropriate drugs for treatment.