No Response From Vitamin D Treatment
I was diagnosed with vitamin D deficiency in March 2008 and have since been taking increasing doses of vitamin D3. I am now up to 4000 units daily. Each time that the dose is increased my vitamin D level will rise (50 being the highest) but then will fall again after a couple of months.
I began 4000 units daily in May 2009. When checked in June level was 50. I have continued on this same dose and as of October 14. 2009, the level had again dropped to 36. Do you have an explanation or treatment recommendation for a situation such as mine?