The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
So let's say you're deficient, you're 20 nanograms per milliliter, and you want to get to 40. You're going to need at least 4,000 IUs, if you are normal and don't have any of these SNPs that change your metabolism of vitamin D, right?
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For each 1,000 IU vitamin D serum levels increase ~ 5-10ng/ml.
1,000 IU of vitamin D raises blood levels ~ 5-10 ng/ml (depending on a person's genetics).
Research indicates that this dosage can effectively elevate deficient individuals (20 ng/ml or less) to sufficient vitamin D status.
Generally, an increase of 1,000 IU in supplementation can boost blood levels by 5-10ng/ml.
1,000 IU raises levels by 5ng/ml
1000 IU raises blood levels by 5 ng/ml.
~1,000 IU/day raises blood levels by 5ng/ml
1,000 IU increases by 5 ng/ml
generally speaking, 1,000 IU can raise blood levels by 5 ng/ml.
1,000 IU per day generally raises serum levels by 5 ng/ml.
1000 IU raises blood levels by 5 ng/ml.
And it takes 1000 IUs a day to raise blood levels by 5 points, right? 5 nanograms per milliliter.
It's generally known that supplementing with around 1,000 IUS of vitamin D3 a day can raise serum 25 hydroxy vitamin D levels by around 5 nanog per milliliter this may not be the case for people with these Gene polymorphisms and other lifestyle factors may also play a role
I think that measuring the blood levels also very very important along with taking the supplement
as I mentioned about a thousand IUS of vitamin D raises serum levels by about 5 nanograms per milliliter
so taking around 1,000 IUS of vitamin D per day can raise blood serum levels by about five nanograms per milliliter
approximately 1,000 IU's of vitamin D generally increases blood levels of 25 hydroxy vitamin D which is the precursor to the active hormone by around five nanograms per mil
in general 1,000 IUS of vitamin D generally raises people's blood levels by about five nanograms per mil