"At this point in time, we really have no idea if supplementation is helpful or harmful in this case" True in May. Remarkably, still mostly true in September
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If there's a study I've missed, please let me know, but thus far we have one tiny, poorly controlled randomized trial, and a bucket of similar epidemiological studies with not much else
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This is a real shame, because after 6 months it would be pretty trivial to have a good RCT of vitamin D supplementation but we have to work with what we've got and what we've got is not sufficient for any kind of definite answer
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The only thing that's changed since I wrote the piece is a new RCT that is, well, a bit problematichttps://twitter.com/GidMK/status/1303559372149108736?s=20 …
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We had to smile "the truth is far more complicated than you’ve been led to believe" probably sums up 90% of science disseminated for public consumption...

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I take it for 10th month in a row now. First it was for dark Estonian winter, then quarantine, where I sit at home all the time and don't see any sun. Didn't know people hype it as one of the magic COVID cures.
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What did you think of this study https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0239252 …? Purely correlational of course, so doesn't prove much, could just be that vitamin D is a biomarker of good health or something... But just keen to know your thoughts...
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That's just not a great study. They only controlled for a handful of confounders, and dichotomized them all. Not great statistical practice!
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"I'll take White People for $200." Question: "Randomized controlled trial on vitamin D supplementation shows no impact." "What is, I wanted to get some dark skinned people in the trial but there was a pipeline problem?"https://www.youtube.com/watch?v=O7VaXlMvAvk …
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