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A comment on Vitamin D, part 3 – The Evidence.

Re:Vitamin D, part 3 – The Evidence by gambler on Tuesday September 08, 2020 @02:36PM (#24411425)
This picture in the article is misleading:

https://static.wixstatic.com/media/3e0600_a25ba8bbf26b47a096...

At the very leat, vitamin D does seem to prevent respiratory infections. The article even admits as much later on. There are several RCTs that verify this. So why put a red cross next to "prevention of respiratory infections"?

Also, worth reading:

"Why randomized controlled trials of calcium and vitamin D sometimes fail"

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3427206/

[ Parent | on HN ]
Re:Vitamin D, part 3 – The Evidence by devaboone on Tuesday September 08, 2020 @09:22PM (#24415688)
The chart is only regarding RCTs. In the best individual trials that we have, it does not show a benefit for respiratory infections. But we do see some suggestion of benefit in meta-analyses. In general, if the meta-analysis shows something that is not seen in RCTs, then we probably need more evidence. But it does seem to be a real effect.
[ Parent | on HN ]