Reply To: My blood test says I have 37 percent vitamin d level and I take 5000 units a day; can I take more vitamin d? My blood glucose is is 118 and that is borderline diabetic. I also take lovastatin 40 mg could that increase my diabetes risk?
So to answer your question, yes if 5000 iu does not get you to a minimum of 50ng/ml then take more. The safe upper limit is 10,000 iu. If you are overweight you will need more Vitamin D to get to the same level. You could try 7000 or 8000 iu.