Dietary guidelines

Dietary guidelines are public recommendations about food and nutrient intake issued by health authorities. They translate nutrition evidence into advice for individuals, institutions, and food policy.

Dietary reference intake: A set of nutrient-intake reference values used to assess and plan diets for populations and individuals. These reference values help authorities set nutrient targets and assess whether recommendations meet needs.
MyPlate: A United States visual food guide depicting a plate divided among food groups. It translates federal dietary recommendations into a simple meal-planning image.
Dietary Guidelines for Americans: A federal United States publication that advises people aged two years and older on healthy eating. It is a prominent national example of guidelines issued on a recurring schedule.
Chronic disease: A health condition that persists over time and often requires ongoing management. Dietary recommendations aim partly to reduce risks of chronic conditions linked to diet.
Nutrition epidemiology: The study of relationships between diet, nutrition, and health outcomes in populations. Its observational evidence often informs guidelines but can be difficult to interpret causally.
Recommended dietary allowance: The average daily nutrient intake level sufficient to meet the needs of nearly all healthy people in a specified group. It gives guideline writers a benchmark for nutrient adequacy.
School meal: A meal provided to students by a school, often under public nutrition standards. Public meal programs use dietary recommendations to set menus and nutrition requirements.
World Health Organization dietary recommendations: Global nutrition recommendations issued by the World Health Organization for health promotion and disease prevention. Its advice offers an international counterpart to country-specific guidance.
Food industry: The businesses involved in producing, processing, distributing, and selling food. Guideline changes can affect product formulation, marketing, and commercial interests.
Randomized controlled trial: An experiment that randomly assigns participants to interventions or comparison groups to estimate causal effects. Trials can test dietary interventions, though long-term whole-diet studies are difficult to conduct.

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