Thanks, I have his older book- I will see if he mentions that in there. I think either way it would be a safer bet to take D3- it seems everyone (including Holi

Thanks, I have his older book- I will see if he mentions that in there. I think either way it would be a safer bet to take D3- it seems everyone (including Holick I presume) is in agreement that D3 is a perfectly good form of vitamin D.