Vitamin D is normally obtained from the diet or produced by the skin from the ultraviolet energy of the sun.
Consult a health care practitioner prior to use if you are pregnant or breastfeeding, if you have kidney disorders or if you take other vitamin D supplements, multivitamin supplements containing vitamin D, products containing vitamin D analogues, if you take any prescription medications including antacids, anticonvulsants, digoxin, cholestyramine, colestipol, mineral oil, steroids, statins or thiazide diuretics.