Take Vitamin D. A lot of the published research on it is misguided because it presumes that blood level of Vitamin D is the central variable that matters. Whether you take Vitamin D in the morning or evening doesn't have much effect on long term Vitamin D blood levels. It therefore isn't subject to study in academia.
So, are you claiming that the blood level of vitamin D is NOT the central variable that matters? And that whether you take it in the mornings or in the evenings is important?
Links, evidence?
Links, evidence?
A bunch of QS people have observed that the timing of vitamin D supplements matters a great deal. Seth Robert wrote a lot about it (http://blog.sethroberts.net/2012/11/01/vitamin-d3-in-morning-improves-sleep-after-all-story-26/ for example).
As far as people you might trust, Gwern replicated the finding: http://www.gwern.net/Zeo#vitamin-d . Taking the supplement at night damaged his sleep.
I don't want to claim that blood level of vitamin doesn't matter at all, but I do claim that it's very unfortunate that there aren't more studies tracki...
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.