I’ve been using D3 for years, 10,000 iu per day.
I haven’t been sick with anything in many years.
When I tell co workers who are sick with colds frequently to get on the D3, they look at me like I’m from Mars.
Oh and I add, I’219 lbs, 6’, and 10% BF.
At age 63!
Thanks for the excellent article.
Good advice.
I have also enjoyed the benefits of using D3.