Quality of Vitamin D
by John Riler
Having decided to take Vitamin D3, how does one get a good pharmaceutical grade? I've gotten to where I don't trust the manufacturing quality of any vitamin or supplement. The FDA makes a good point that taking a vitamin is one thing. Getting what's advertised is another.
(I ordered some Chinese herbs a few years ago that were supposed to be good for digestion. They came with tags that were warnings from the state of California that they had been determined to contain unacceptable levels of hard metals.)
Also, why is Vitamin D2 the only available prescription Vitamin D offered?
Why isn't Vitamin D3 offered in prescription strength?