BlogHide Resteemssebastiannss (26)in health • 7 years agoTHE IMPORTANCE OF VITAMIN D!HISTORY Vitamin D3 was first isolated and identified by professor Adolf Windaus in 1937. Although vitamin D is commonly referred to as a vitamin, it is actually a steroid hormone. There are…sebastiannss (26)in steemit • 7 years agoWHAT IS STEEMIT, HOW DOES IT WORK, AND WHO IS BEHIND IT?STEEMIT is a social network in witch users create and comment on each others content. Steemit is made of sub-groups that encompass literally thousands of topics. Content creators writre articles…