Cliffman, how low. When I found out how low I was in 2006 it was 16 as I recall...one doc I saw for a while decided to test himself and he was a pultry 13....

For about 6 months I took 4K D3 daily and finally got to 34...so it was slow...then more and more research was coming out and the K2 connection came out.. At one point I got to 80 and I remember how great I felt. Then hip replacement surgery knocked me down 40 pts which I had heard D drops with surgery. So I've been working up since surgery and don't know where I am today. Didn't get labs done last year...but daily I take 5K D3 and some days take 10K and the K2 100mcg.

So many could be healthier I believe, if they only knew. Mostly older folks...younger people are out and active in the sun. I was until I came in from the sun in my early 50's..