4 ms·
As far as I'm aware Vit D toxicity has been observed in much higher doses than 4000 IU/day. Do you have a quote for the 4000 IU/day figure? The skin produces u
by shock 6y ago
As far as I'm aware Vit D toxicity has been observed in much higher doses than 4000 IU/day. Do you have a quote for the 4000 IU/day figure?
The skin produces up to 10,000 IU/day after exposure to UV light⁰. The same study I'm quoting shows toxicity levels at over 20000 IU/day for adults. One person in the study has taken 156,000–2,604,000 IU/day for 2 years!
⓪ - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6115827/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6115827/
- viraptor 6y agoThe production in the body is self-regulating though, so you can't overdose from sun exposure. Supplements can bring you over the limit, because you absorb what you're given.
- shock 6y agoYou are arguing a point I didn't make. My point was to his statement that 4000 IUs/day were toxic (without stating any basis for that number), while the study I quote claims that the body produces up to 10000 IUs/day – so clearly the toxicity limit is not an unqualified 4000 IUs/day. Perhaps in some people toxicity appears at lower doses while in other people at higher doses.
- viraptor 6y agoI'm not really disputing the 4k not being toxic. Just the way I understand it, even though you can produce up to 10kUI through the skin should have no relation to the toxicity level being below or above 10kUI.