5 ms·
I am a bit perplexed. Haven't almost all randomized/controlled trials shown (e.g. [1]) that there is basically no measurable effect for healthy people? All "pos
by jpdus 7y ago
I am a bit perplexed. Haven't almost all randomized/controlled trials shown (e.g. [1]) that there is basically no measurable effect for healthy people? All "positive" stories are relying on observational studies with the usual confounders, right?
EDIT: Look at figure 2 in the Paper. Looks pretty random to me. Result is almost exclusively driven by 4-5 small (<250 participants) and old studies.
[1] https://www.vox.com/2018/10/4/17933880/vitamin-d-health-sun-diet https://www.vox.com/2018/10/4/17933880/vitamin-d-health-sun-...
- CodeWriter23 7y agoVitamin D in the study you provide, D2 & D3 in the OP link. Chemistry and source matters. D is synthetic, D2 is plant derived, D3 animal derived.
- aldoushuxley001 7y agoD3 mostly comes from fungi as far as commercial sources for supplements are concerned, I'm pretty sure.
- posix_me_less 7y agoD3 is made by irradiating lanolin (from sheep wool) with UV light [1]. Natural source of D3 is oily fish, beef liver. It's the Vitamin D2 that is made from fungi - UV light helps to create it in mushrooms [2]. [1] https://www.quora.com/What-is-the-industrial-process-involved-in-making-Vitamin-D3?share=1 https://www.quora.com/What-is-the-industrial-process-involve... [2] https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/#h3 https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessiona...