Don- I agree with you for the most part. but some reason people are being encourage to stop thinking critically on some items, like vit d. some of these studies promoting vit d on the basis of widespread deficiency even claim that people living in india are deficient because their skin is too dark!?! come one, think that through for a minute. they are living exactly where their ancestor's bodies evolved dark skin. no doubt people's blood levels are low... but is simply an effect or symptom of other issues. popping vit d supps misses the entire issue.
I am not against supplements. I do take issue with vit d however as this burned me and i thought I was paying attention. it is too far under the radar and someone needs to shine a light on it.
j.