About: http://webisa.webdatacommons.org/362216382

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The main ones are Vitamin D2 (ergocalciferol) and Vitamin D3 (cholecalciferol ) From my research most experts agree that Vitamin D3 is the best form to take.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com