title: I've heard that I should look for the amount of elemental calcium when choosing a calcium supplement. What is elemental calcium, and how can I tell how much a supplement contains?
mesh_terms: D002118:Calcium / Q000008:administration & dosage*; D017610:Calcium Compounds / Q000008:administration & dosage / Q000737:chemistry* / Q000592:standards; D005260:Female; D006801:Humans; D018673:Nutrition Policy
chemical_list: D017610:Calcium Compounds; D002118:Calcium