About: http://webisa.webdatacommons.org/412465513

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	Calcium is an essential nutrient that is best supplied by FOOD. Research indicates the need to supplement this nutrient as many diets do not contain adequate levels.
http://www.w3.org/ns/prov#wasQuotedFrom	megafood-vitamins.com