Dietary Reference Intakes



The Dietary Reference Intakes (DRIs) are developed and published by the Institute of Medicine (IOM). The DRIs represent the most current scientific knowledge on nutrient needs of healthy populations. Please note that individual requirements may be higher or lower than the DRIs.

Should you want to distribute or reprint a DRI resource, please visit The National Academies Press website to secure all necessary permissions.


See key nutrient recommendations and learn about the roles nutrients play in promoting health and optimal functioning.


Find 2010 Evaluation of Biomarkers and Surrogate Endpoints in Chronic Disease and other background papers and evaluation reports.


Download tables and charts of DRIs for all nutrients categorized by age and sex. Find applications in dietary assessment and planning.

Resources on Individual Macronutrients, Phytonutrients, Vitamins and Minerals


  • Macronutrients - including general and specific resources on carbohydrates, proteins, fiber, fats and cholesterol, water, as well as interactive tools.
  • Phytonutrients - including general information, government-related sites, and resources on specific phytonutrients such as tea, lycopene, and phytoestrogens.
  • Vitamins and Minerals - including general information as well as resources for specific vitamins and minerals.