Comment by steve1977
What is way too much? I take around 4000IU per day. Which just about brings my blood levels into the “green” area in blood testing.
What is way too much? I take around 4000IU per day. Which just about brings my blood levels into the “green” area in blood testing.
My 4000 units were after blood testing and also after genetic testing which showed some VDR mutations that might benefit from supplementation. As mentioned in another comment, that dose brings me slightly over 30 ng/ml, so basically borderline ok.
I fully agree that supplementation should always be combined with both blood testing and also a general medical evaluation.
Current recommendations are 800 IU per day if you’re not significantly deficient. Always keep testing at least once a year or so. I took 5000 IU per day for a while, which ended up pushing me over 60 ng/ml. That’s considered too high a level and may have negative health effects.
The reddit post was taking 50,000IU a day, which is usually the amount prescribed for someone to take once a week.
Your 4000IU isn't too much. Lots of the brands you see in stores are 5k for daily supplementation.