How much Vitamin D do you take daily? Also look into zinc gluconate 15mg, quercetin 200mg, and selenium. A few times a week is safe while helping against cold

How much Vitamin D do you take daily? Also look into zinc gluconate 15mg, quercetin 200mg, and selenium. A few times a week is safe while helping against colds and flus. This post has links to various studies: https://knowledgeofhealth.com/modern-day-zinc-deficiency-epidemic/ https://knowledgeofhealth.com/modern-day-zinc-deficiency-epi... For selenium: Google: selenium virus mutation