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Nursing and Allied Health: Dietary Guidelines for Americans

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Food & Nutrition


Dietary Guidelines for Americans

The Dietary Guidelines for Americans (Dietary Guidelines) provides advice on what to eat and drink to meet nutrient needs, promote health, and prevent disease. It is developed and written for a professional audience, including policymakers, healthcare providers, nutrition educators, and federal nutrition program operators. The U.S. Departments of Health and Human Services (HHS) and Agriculture (USDA) work together to update and release the Dietary Guidelines every five years. Each edition of the Dietary Guidelines reflects the current body of nutrition science. 

To learn more about the Dietary Guidelines development process, visit DietaryGuidelines.govThis link is external to






Professional Resources

Professional Resources

USDA and HHS develop resources for professionals to help promote healthy eating across the lifespan from birth to older adulthood. Use the information on this page to learn more about the Dietary Guidelines and get tips and resources to share with others. 

¿Estás buscando más recursos en español que apoyen el uso e implementación de las Guías Alimentarias para Estadounidenses? Visita nuestra página de Recursos en español.

Systematic Reviews for the 2020 Dietary Guidelines Advisory Committee

Systematic reviews are one of three approaches that the 2020 Dietary Guidelines Advisory Committee used to review current scientific evidence. The USDA’s Nutrition Evidence Systematic Review (NESR) team supported the 2020 Dietary Guidelines Advisory Committee in conducting original systematic reviews. Detailed information about the 2020 Dietary Guidelines Advisory Committee and their report can be found at

The NESR team used our rigorous, protocol-driven methodology to support the 2020 Advisory Committee in conducting systematic reviews. NESR’s general methodology for answering a systematic review question involves:

  • developing a protocol,
  • searching for and selecting articles,
  • extracting data and assessing the risk of bias of results from each included article, 
  • synthesizing the evidence,
  • developing conclusion statements,
  • grading the evidence underlying each conclusion statement, and 
  • recommending future research.
Dietary Patterns Subcommittee
Pregnancy and Lactation Subcommittee
Birth to 24 Months Subcommittee
Beverages and Added Sugars Subcommittee
Dietary Fats and Seafood Subcommittee
Frequency of Eating Subcommittee

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