亚洲最大福利网站_4hu四虎永久网址_麻豆国产原创_国产成人av一区二区

Is vitamin D3 more effective than D2?
date:May 08, 2012
ethnicity, which this review was unable to verify.





Vitamin D forms



The difference between the vitamin D forms may be related to how each form is metabolized, said the researchers.




Evidence has been accumulating that specifically looks at the metabolism of vitamin D, especially that focuses on the hydroxylation steps at the liver and kidney that were required to convert the inert ergocalciferol and cholecalciferol to the active calcitriol (1,25-dihydroxyvitamin D).





By centering o

12/20 01:33