Newest update:

I want to mention that I was taking vitamin D3 supplements last winter. I took 1000 i.e. per day. After I started cycling a lot from spring to summer, I stopped taking them because...

I had my vitamin D levels tested today directly in a lab that does these tests. I'll get the results back in a few days. I'm curious what my levels are. Having said that,
the most I expect from...

I haven't read the whole thread but I just wanted to add that many people are getting their D3 levels tested without having anxiety or depression because a lack of vitamin D can lead to other...