I wouldn't be too sure of that!!! Two hours of sunlight a day?? to my knowledge, there isn't a place in the world that can guarentee you 2 hours of sunlight a day, everyday. So how can it be possible that we need that much and daily?? I would think if that were true in places that have weeks without sun, those people would be in a great deal of trouble don't you think??
As for Robert Barefoot, well, I hope you don't like your Coral Calcium Supreme to much, if you check out his site www.coralcalciumsupreme.com you will find out it's no longer available. As is none of the Calcium supplements he had on his www.cureamerica.com site.....strange??! I've heard lots of rumors, and read alot of interesting information on him. Don't get me wrong, the man is VERY knowledgeable on Calcium, but I wouldn't take his word for gospel, seems with all that has been going on he's in a bit of trouble.
And I agree with Toxic, I wouldnt' trust manmade light either!!