title: The nutrient density approach to healthy eating: challenges and opportunities.
abstract: The term 'nutrient density' for foods/beverages has been used loosely to promote the Dietary Guidelines for Americans. The 2010 Dietary Guidelines for Americans defined 'all vegetables, fruits, whole grains, fat-free or low-fat milk and milk products, seafood, lean meats and poultry, eggs, beans and peas (legumes), and nuts and seeds that are prepared without added solid fats, added sugars, and sodium' as nutrient dense. The 2010 Dietary Guidelines for Americans further states that nutrient-dense foods and beverages provide vitamins, minerals and other substances that may have positive health effects with relatively few (kilo)calories or kilojoules. Finally, the definition states nutrients and other beneficial substances have not been 'diluted' by the addition of energy from added solid fats, added sugars or by the solid fats naturally present in the food. However, the Dietary Guidelines Advisory Committee and other scientists have failed to clearly define 'nutrient density' or to provide criteria or indices that specify cut-offs for foods that are nutrient dense. Today, 'nutrient density' is a ubiquitous term used in the scientific literature, policy documents, marketing strategies and consumer messaging. However, the term remains ambiguous without a definitive or universal definition. Classifying or ranking foods according to their nutritional content is known as nutrient profiling. The goal of the present commentary is to address the research gaps that still exist before there can be a consensus on how best to define nutrient density, highlight the situation in the USA and relate this to wider, international efforts in nutrient profiling.
authors.affiliation: 1USDA/ARS Children's Nutrition Research Center at Baylor College of Medicine,Department of Pediatrics,1100 Bates Avenue,Houston,TX 77030,USA.
authors.forename: Theresa A
authors.initials: TA
authors.lastname: Nicklas
authors.affiliation: 2Center for Public Health Nutrition and Department of Epidemiology,University of Washington,Seattle,WA,USA.
authors.forename: Adam
authors.initials: A
authors.lastname: Drewnowski
authors.affiliation: 3School of Nutrition and Food Sciences,Louisiana State University Agricultural Center,Baton Rouge,LA,USA.
authors.forename: Carol E
authors.initials: CE
authors.lastname: O'Neil
mesh_terms: D004032:Diet; D005502:Food; D017408:Guidelines as Topic; D015438:Health Behavior; D006301:Health Services Needs and Demand; D006801:Humans; D009753:Nutritive Value