The Vitamin D Blood Test (25-OH Vitamin D): Who, How, When, and Where Clinically speaking, things began to change in the 1970s when the blood test for vitamin D (known as the "25-OH vitamin D ...
10 mcg = 400 IU. 15 mcg = 600 IU. 20 mcg = 800 IU. It is much easier to access the patient’s need after a vitamin D blood test. Few individuals would allow their clinician to simply guess an ...
advised that it is necessary to get a blood test prior to supplementing to see what your current vitamin D levels are. “This test is usually performed by your doctor, who will also give you ...
So he would only link the two if the level of vitamin D measured in a blood test is below the level of 50nmol/L. You can ask for a blood test from your GP to measure your levels of vitamin D ...