title: Portion sizes in dietary assessment: issues and policy implications.
abstract: Accurate estimates of energy and nutrient intake of individuals and populations are contingent on the reliability of information obtained about food intake, food composition, and portion size. This article reviews issues related to the definition, determination, and use of portion sizes in dietary assessment and public education.
mesh_terms: D004435:Eating; D005247:Feeding Behavior; D005504:Food Analysis; D005515:Food Labeling; D006266:Health Education; D006801:Humans; D015596:Nutrition Assessment; D018673:Nutrition Policy; D012015:Reference Standards; D011795:Surveys and Questionnaires; D014481:United States; D016885:United States Department of Agriculture; D014486:United States Food and Drug Administration