But basically, D2 disappears from your body more quickly and may not be as effective for a minority of people.
this seems to be the crux of it. I just read (most of) an article on Jack Norris' website and some of the sciency stuff went over my head but he basically said the same thing.
"There are some other things to consider about the research comparing D2 to D3, the most important of which is that vitamin D2 is probably adequate for most people. Even though D3 might increase vitamin D levels somewhat better than D2, D2 still increases the levels well into and beyond the range that is considered optimal by the Institute of Medicine."http://veganhealth.org/articles/bones#d2d3
I used to have like no vitamin D a few years ago when they started testing for it and was put on the mega dose and it gave me migraines so I just started taking the regular stuff everyday and to my knowledge ive been fine ever since. since my levels are already up im thinking the D2 should be ok for me. im not trying to raise them im just trying to maintain them.
ill keep the vitashine stuff in mind for next time I need a refill.