There's been an rct and the effects of vitamin d are incredibly impressive. https://www.sciencedirect.com/science/article/pii/S0960076020302764?via%3Dihub http

There's been an rct and the effects of vitamin d are incredibly impressive. https://www.sciencedirect.com/science/article/pii/S0960076020302764?via%3Dihub https://www.sciencedirect.com/science/article/pii/S096007602...