Originally Posted by
johntrevy 
You take 5x 10,000 in a day? Holy moley that is a lot. He says that 1,000 in a day is enough for me but for my levels to only go from 38 to 40 whatever unit in the space of 2 months isn't exactly encouraging or reassuring to me.
I think he meant 5,000-10,000IU
You can find the tolerable Upper Limits online...I can't remember the number, but it's pretty high.
Some people are so low in D that they have to get weekly high-dose injections at the doctor's office for months before their levels go up (so I've read, anyway.)
Stay the course. Your doctor hopefully knows what s/he's doing.
