Vitamin D | 5000IU

Known as the sunshine vitamin, one of the key roles of vitamin D  is  maintaining  serum  calcium  and  phosphorous  balance.  Our  bodies  make  vitamin  D  by  converting  vitamin  D2  to  D3,  or cholecalciferol (the active form) when exposed to sunlight.D3  is  also  the  form  which  the  body  derives  from  dietary  cholesterol.  When  calcium  and  phosphorus  levels  dip  in  the  body, parathyroid hormone (PTH) is released to increase vitamin D  conversion  to  the  active  form.    D3  is  then  metabolized  to  calcitriol,  a  steroid  hormone  that  helps  regulate  a  variety  of  genes through the vitamin D receptor (VDR). While vitamin D is available in both forms as supplements, studies have found vitamin  D3  is  the  preferable  form,  as  it  has  been  found  to  maintain  active  vitamin  D  levels  for  a  longer  period  of  time.  This Vitamin D formulation is delivered as D3 (cholecalciferol) for optimal use by the body and is available in 1,000 and 5,000 IU capsules, to meet a variety of individual needs.