title: Nutrient effects: discrepancy between data from controlled trials and observational studies.
authors.affiliation: Creighton University, Omaha, NE 68178, USA.
authors.forename: R P
authors.initials: RP
authors.lastname: Heaney
mesh_terms: D015519:Bone Density / Q000187:drug effects; D002136:Calcium, Dietary / Q000008:administration & dosage / Q000592:standards; D018849:Controlled Clinical Trials as Topic / Q000592:standards; D004032:Diet / Q000592:standards; D002149:Energy Intake / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D009747:Nutritional Physiological Phenomena / Q000502:physiology*
chemical_list: D002136:Calcium, Dietary