What Do You Lack? Probably Vitamin D

Re:What Do You Lack? Probably Vitamin D by gregwebs on Tuesday July 27, 2010 @10:19PM (#1553381)

UV-B reacts with the 7-Dehydrocholesterol in your skin to produce cholecalciferol (D3) If you take vitamin D, make sure it is D3! So either way it will hit your liver as D3.

The body was designed to get D from sun, and it is difficult to overdose that way unless you are a lifeguard. It is easy enough to overdose on D if it is taken orally.

There are other effects than vitamin D from sun exposure- it would be presumptuous to assume you could achieve optimal health from a vitamin D supplement.

[ Parent | on HN ]

Re:What Do You Lack? Probably Vitamin D by miked on Wednesday July 28, 2010 @03:28AM (#1553814)

If you take vitamin D, make sure it is D3!

In his book _The Vitamin D Solution_, Dr. Michael Holick ( the discoverer of the active form of Vit-D) debunks this myth with data. I haven't read most of it, but it looks interesting.

[ Parent | on HN ]

Re:What Do You Lack? Probably Vitamin D by gregwebs on Wednesday August 18, 2010 @02:19PM (#1615045)

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.

[ Parent | on HN ]