It is not good to take a tablet of vitamin C every day; vitamin C is recommended to be supplemented from food and healthy people do not need to take a tablet of vitamin C every day. There are a wide range of food sources of vitamin C. Almost all common fruits are rich in vitamin C. The content of vitamin C per 100g of papaya is 43mg, the content of vitamin C in kiwi among fruits is 65mg/100g, the content of vitamin C per 100g of sea buckthorn fruit is 204mg, and vitamin C of winter jujube is as high as 243mg/100g. Dietary guidelines for Chinese residents recommend that the daily intake of vitamin C for adults is 100mg/day. If you eat 200g papaya, 150g kiwi or 50g winter jujube in a day, you can easily meet the daily requirement of vitamin C. Healthy people do not need to get it from medicines or health products. Meanwhile, patients with renal impairment and gastric ulcer need to use vitamin C tablets with caution; long-term application of large amounts of vitamin C can cause urate, cysteinate or oxalate stones. Long-term application of large amounts of vitamin C can cause urate, cysteinate or oxalate stones. Long-term application of large amounts of vitamin C can cause urate, cysteinate or oxalate stones. Of course, if there is a vitamin C deficiency, you need to supplement vitamin C with additional medication, but it must be used under a doctor’s supervision.