[activescott]

Interesting about "supplementation of vitamin D-replete individuals does not provide demonstrable health benefits". The OP article does clearly call out that the benefits of vitamin D are in cases of _vitamin D deficiency_. It goes on to state that there is a "worldwide vitamin D deficiency pandemic" and mentions that 32% of children and adults have a circulating concentration of 25(OH)D < 20 ng/mL (i.e. vitamin D deficient).

So I think the broader point of the article was that many of us are vitamin D deficient, and those of us that are, have increased health risk, and that's why we need to supplement our vitamin D.