Hutchinson, '"55ng 137.5nmol/l" ?

I think you meant to say ' 55ng/mL or 137.5nmol/L' .

I'm interested in how much you take to attain and maintain such a level?


"Maybe evolving naked living outdoors" would be significant if we maximized vitamin D production - but we don't. Like I said 'D' synthesis stops after 20 minutes of near full body exposure. And there are other limiting mechanisms. Think I'm making it up? You really need to read the references provided at the posts I've linked to.

"Harmful effects probably appear at sustained levels as low as 130 nmol/L."