Many women take the pill as a form of contraception, and doctors sometimes advise patients to supplement with vitamin C. So what can vitamin C do while taking the pill. 1, it can prevent or reduce the consumption of vitamin C during the metabolism of the pill. After taking the pill, the metabolism of the pill will accelerate the metabolism of vitamin C in the body, which will lead to vitamin C deficiency after a long time. 2, a long time taking the pill, contraceptive women are prone to skin discoloration, after taking vitamin C through its antioxidant, anti-free radical effect, can effectively prevent and remove discoloration. 3. Gastrointestinal reactions that occur when taking birth control pills can be effectively relieved by taking vitamin C.