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How much vitamin C should people supplement a day?
Vitamin C is an essential water-soluble vitamin for human body. The recommended daily dietary dose is 90mg/ day for adults and 0/30 mg/day for pregnant women, which is the basic intake dose that must be guaranteed.

Fruits with high vitamin C content, such as kiwifruit, actually have fresh dates with higher content than kiwifruit, which is called "vitamin C Wang Zhongwang".

Extended data:

Vitamin C is necessary for the formation of antibodies and collagen, tissue repair (including some redox actions), the metabolism of phenylalanine, tyrosine and folic acid, the utilization of iron and carbohydrates, the synthesis of fat and protein, the maintenance of immune function, hydroxylation and serotonin, the maintenance of vascular integrity, the promotion of non-heme iron absorption, etc. At the same time, vitamin C also has the functions of antioxidation, anti-free radical and inhibition of tyrosinase formation, thus achieving the effects of whitening and lightening spots.

Reference link: Baidu Encyclopedia-Vitamin C