I'll start with a vitamin related thing.
Vitamin D and K supplementation:
Prior to covid, I never really looked too much into taking vitamins, or paid much attention to their role in good overall health. Fortunately, I've been really healthy, so I guess I didn't really have the need to study it too much. However, when covid came around, I felt it was my responsibility to start seeing what things I can do to protect my family including parents, grandparents, kids, etc. Vitamin D was one of the key things that came up pretty early on, and showed promise in helping to have less severe sickness for people that did get covid. So I got my family on a regular dose of vitamin D.
Recently, however, I saw an article talking about how much better it is to take vitamin D with vitamin K. See the article here:
Supplementing vitamin D3 and K2 comes with all the benefits of vitamin D and vitamin K, but also some unique health benefits that are only unlocked when these two vitamins are used together. New research is revealing this game-changing pair of vitamins and their effect on our hearts, our bones...
www.humann.com
The combination of vitamin D3 and K2 is more effective than just D alone. In addition, per the article, high doses of vitamin D without vitamin K to temper it, can cause high calcium levels (called hypercalcemia) in your blood, which leads to blood vessel calcification, which can lead to hear disease or stroke.
TLDR: Take vitamin D3 and K2 together in appropriate doses and you'll be healthier.
In regards to vitamin D's role in covid prevention as well, this article just came out:
Vitamin D helps bolster the immune system to tackle viruses that attack the lungs, the researchers said.
www.businessinsider.com