Most health organizations agree that a range of 30-80 ng/ml accounts for sufficient levels of vitamin D. The Vitamin D Council recommends that adults take 5,000 IU of Vitamin D3 daily to achieve and maintain optimal levels.
How much vitamin D3 is in 5000 IU?
If you need to know how much vitamin D3 is in 5000IU you need to know that 1000IU =25 micrograms of vitamin D3, so 5000IU =125 micrograms=0.125mg of vitamin D3. But if you go to the health food store you only see the International Units listed. So, stop confusing yourself. Think like everyone else in International Units!
What units are used to measure Vitamin D3?
(2010-present) The convention is to measure vitamin D (which in 99% of cases is vitamin D3 or cholecalciferol) in International Units: Cholecalciferol medical facts from Drugs.com. If you need to know how much vitamin D3 is in 5000IU you need to know that 1000IU =25 micrograms of vitamin D3, so 5000IU =125 micrograms=0.125mg of vitamin D3.
How much vitamin D3 should I take?
The end result is that experts in the field are now recommending to take between 4000 IU to 6000 IU of vitamin D3 to bring the blood level of 25-hydroxy vitamin D level to between 50 and 80 ng/ml. I happen to be a poor vitamin D3 absorber.
What is a toxic level of vitamin D3?
Toxic levels occur only with a blood vitamin D level of above 150 ng/mL (= 375 mmol/L). The best results are with vitamin D3 doses that bring the blood vitamin D level into the high normal range.