Paul Saladino· MD
daily intakes of greater than 25 000 iu for more than six years and a hundred thousand iu for more than six months are considered toxic
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
daily intakes of greater than 25 000 iu for more than six years and a hundred thousand iu for more than six months are considered toxic
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Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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on a shorter term basis like six months the only recorded cases are over a hundred thousand units of vitamin a a day a hundred thousand iu of vitamin a a day taking six months plus to result in toxicity
vitamin a toxicity is real but very hard to get you would have to eat many ounces of liver every day for years to even be at risk of this
national institute of medicine set toxicity levels at doses higher than 10,000 IU per day.