About: http://webisa.webdatacommons.org/417467981

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	Unfortunately, very few foods in nature contain vitamin D. Most vitamin D in the American diet comes from fortified foods such as cereal or milk.
http://www.w3.org/ns/prov#wasQuotedFrom	columbia.edu