Diet

Diet
Name	Diet
Classification	Human nutrition
Related	Nutrition, Food, Health

Diet is the pattern of food and drink consumed by an individual or population over time. It encompasses specific choices, customary meals, and regulated menus that interact with physiology, culture, agriculture, and policy, influencing growth, performance, and disease risk.

Definition and Types

A dietary pattern can be categorized by tradition, geography, religion, or purpose, with examples including Mediterranean, vegetarian, vegan, ketogenic, paleo, DASH, and Islamic halal or Jewish kosher practices; classical models include the Mediterranean Sea basin diets of Greece and Italy and the plant-forward cuisines of India and Japan. Historical diets are associated with regions and eras such as the Roman diet of Ancient Rome, the medieval tables of England and France, the imperial provisions of China and the grain-based sustenance tied to the Columbian Exchange. Specialized regimens arise in institutions and movements like those promoted by Mayo Clinic, Harvard University, World Health Organization, Food and Agriculture Organization, and advocacy groups such as American Heart Association and American Diabetes Association. Therapeutic diets applied in clinical settings may reference guidelines from National Institutes of Health, Centers for Disease Control and Prevention, National Health Service, and specialty centers like Cleveland Clinic and Johns Hopkins Hospital.

Nutritional Components and Requirements

Macronutrients—carbohydrates, proteins, and fats—are studied by researchers at institutions such as Salk Institute, Massachusetts Institute of Technology, University of Cambridge, Stanford University, and University of Oxford; micronutrients—vitamins and minerals—are cataloged in reports by United Nations, World Bank, Bill & Melinda Gates Foundation, and research groups at Karolinska Institute and Max Planck Society. Nutrient requirements vary across life stages characterized by milestones and agencies: prenatal care recommendations from American College of Obstetricians and Gynecologists, pediatric guidance from American Academy of Pediatrics, adolescent nutrition research at University of California, Berkeley, and geriatric nutrition studies at Mount Sinai Health System. Diet composition considerations are reflected in agricultural outputs shaped by United States Department of Agriculture, European Commission, Brazilian Ministry of Agriculture, and trade patterns analyzed by World Trade Organization and multinational corporations like Nestlé and Unilever.

Diet and Health Outcomes

Associations between dietary patterns and chronic conditions are central to research reported in journals affiliated with Nature Publishing Group, The Lancet, New England Journal of Medicine, and institutions such as Harvard T.H. Chan School of Public Health, Johns Hopkins Bloomberg School of Public Health, and Imperial College London. Diet quality links to cardiovascular disease outcomes studied by American Heart Association and trials like those coordinated at Framingham Heart Study; metabolic disorders such as type 2 diabetes feature in work by Diabetes UK and International Diabetes Federation. Cancer epidemiology intersects with diet research conducted at National Cancer Institute and World Cancer Research Fund, while neurodegenerative disease associations are explored at Alzheimer's Association and Dementia Research Institute. Infectious disease outcomes related to nutrition are part of research by Global Fund, GAVI, and Médecins Sans Frontières.

Cultural, Ethical, and Environmental Aspects

Food choices are embedded in cultural identities represented by festivals and cuisines of Mexico, Thailand, Ethiopia, Lebanon, and Spain; religious prescriptions involve institutions like Vatican City norms, Islamic jurisprudence in Saudi Arabia, and Jewish law in Israel. Ethical debates over animal welfare and factory farming involve advocacy from People for the Ethical Treatment of Animals and policy scrutiny by European Food Safety Authority and United States Department of Agriculture. Environmental impacts of food systems are analyzed by Intergovernmental Panel on Climate Change, United Nations Environment Programme, Greenpeace, and research centers such as Wageningen University and CSIRO. Land use, biodiversity, and fisheries intersect with agencies like National Oceanic and Atmospheric Administration, Convention on Biological Diversity, and international agreements including the Paris Agreement.

Dieting Practices and Weight Management

Weight-control strategies range from behavioral programs at clinics like Weight Watchers and interventions studied at Behavioral Science Lab programs at Yale University and Columbia University to medical approaches including bariatric surgery performed at centers such as Cleveland Clinic and pharmaceutical treatments reviewed by Food and Drug Administration and European Medicines Agency. Fitness and performance nutrition are emphasized by organizations such as International Olympic Committee, FIFA, National Football League, and sports science departments at Loughborough University and Australian Institute of Sport. Popular diet movements have been popularized by public figures and authors associated with publishers like Penguin Random House and HarperCollins, and debated in media outlets including BBC, The New York Times, and The Guardian.

Public Health, Policy, and Dietary Guidelines

National and international dietary guidance is promulgated by bodies such as United States Department of Agriculture, Public Health England, World Health Organization, Food and Agriculture Organization, and Canadian Food Inspection Agency; policy instruments include school meal programs in Japan and South Korea, food labeling standards set by European Commission and Codex Alimentarius Commission, and nutrition assistance programs administered by agencies like United States Department of Agriculture and UNICEF. Regulatory frameworks addressing food safety and fortification are enforced by Food and Drug Administration, European Food Safety Authority, and national ministries of health; global initiatives to reduce malnutrition and obesity engage partnerships including Scaling Up Nutrition Movement, Global Nutrition Cluster, Bill & Melinda Gates Foundation, and World Bank.

Category:Nutrition