I'm not sure about the combination of covid + vitamin D. But you can also overdose on vitamin D since it's fat soluble. https://www.healthline.com/nutrition/vi

I'm not sure about the combination of covid + vitamin D. But you can also overdose on vitamin D since it's fat soluble. https://www.healthline.com/nutrition/vitamin-d-side-effects#6.-Kidney-failure https://www.healthline.com/nutrition/vitamin-d-side-effects#...