3 ms·
Max "official" safe daily limit is 4000 IU currently, but the only studies I'm aware of where actual toxicity was reported started at something like 40,000 IU d
by skosch 9y ago
Max "official" safe daily limit is 4000 IU currently, but the only studies I'm aware of where actual toxicity was reported started at something like 40,000 IU daily for months. Vitamin D is likely pretty safe.
- qwerty456127 9y agoI just wonder how does official data of this kind emerge if not based on any studies.
- AstralStorm 9y agoNo, the estimated RDA based on EPIC series of studies is 3000 IU daily and it's suspected to be on the lower side due to old people being bit overrepresented. This based on all cause mortality, various European subjects. Intake estimated by direct multiple blood levels. Vitamin D intake vs mortality followed a very shallow U curve (almost J) and minimum was between 2000 and 4000 IU.
- qwerty456127 9y agoSo the RDAs are about just decreasing mortality rather than improving life/health, right?