Despite the large variety of complementary medicines marketed, most clinical trials to date have studied the impact of vitamin D, vitamin C or zinc to reduce the risk of contracting COVID, improve rates of hospitalisation or death.Despite the large variety of complementary medicines marketed, most clinical trials to date have studied the impact of vitamin D, vitamin C or zinc to reduce the risk of contracting COVID, improve rates of hospitalisation or death. Can taking vitamins and supplements help you recover from COVID? | Lifestyle News,The Indian Express