Vitamin D looks powerful, underutilized for Covid-19
Can someone tell me why HN is so obsessed with Vitamin D? I see a Vitamin D related article on the front page every few months. Also, <a href="https://hn.algolia.com/?q=vitamin+d" rel="nofollow">https://hn.algolia.com/?q=vitamin+d</a> shows a lot of articles about Vitamin D with a lot of upvotes.<p>Note: I supplement with Vitamin D daily, so no hate at all, just curious.