I started out at 14 almost 3 1/2 years ago. I took the prescription D2 and it didn't help much. I had to add D3 for quite awhile--I think I was only taking 2,000. I finally got it up to 46. They wanted it between 60-80 at least. I get tested every 6 months now and have been playing with doses to see what is best for me. I was taking 8,000 a day for many months. I got it up to 100 by last Nov. However, I dropped down to 4,000 a day and just got tested in April and am now at 63. I have gone back to 6,000 a day. I'm sure, though, in the summer I won't need as much but the next time I'll see where I am. My recommendation is to get it tested every 6 months so you can see how quickly you raise it and what basic dose you need to take to keep the number steady.

In the meantime, I have found I am back to being iron deficient again!!