2 D or not 2 D–that’s the question

Though many of my clients won't be surprised to hear this, according to a new study (see below), vitamin D3 is 87 percent more potent at raising blood levels of the vitamin than vitamin D2. Vitamin D3 also produced an increase in vitamin D storage two to three times greater than vitamin D2.

http://jcem.endojournals.org/cgi/content/abstract/96/3/E447?maxtoshow=&hits=10&RESULTFORMAT=1&andorexacttitle=and&andorexacttitleabs=and&andorexactfulltext=and&searchid=1&FIRSTINDEX=0&sortspec=relevance&resourcetype=HWCIT