About: http://webisa.webdatacommons.org/275054312

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	Although calcium is an essential nutrient during pregnancy, calcium can decrease iron absorption.
http://www.w3.org/ns/prov#wasQuotedFrom	mayoclinic.org