title: Vitamin D insufficiency: no recommended dietary allowance exists for this nutrient.
authors.affiliation: Department of Laboratory Medicine and Pathology, University of Toronto, ON. rvieth@mtsinai.on.ca
authors.forename: Reinhold
authors.initials: R
authors.lastname: Vieth
authors.forename: Donald
authors.initials: D
authors.lastname: Fraser
mesh_terms: D002170:Canada / Q000453:epidemiology; D019587:Dietary Supplements; D005260:Female; D006801:Humans; D008297:Male; D018673:Nutrition Policy; D014807:Vitamin D / Q000008:administration & dosage; D014808:Vitamin D Deficiency / Q000453:epidemiology / Q000517:prevention & control*
chemical_list: D014807:Vitamin D