Vitamin D is the most important vitamin. There was a “mathematical error” when scientists calculated the daily value, and I believe sunscreen was a conspiracy to make people deficient.

http://www.globalhealingcenter.com/natural-health/9-facts-everyone-should-know-about-vitamin-d/

https://www.sciencedaily.com/releases/2015/03/150317122458.htm

I bought a supplement that contains 10,000 per dose, which I take every other day. Don’t forget that getting sunlight for vitamin D is only effective late spring, summer, and early fall. Winter months will only give you UVA rays, which do not produce vitamin D. Don’t forget that most sunscreens only block UVB, the good sun rays.