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.

Apple image that represents the DRI App Dietary Reference Intake Calculator for Healthcare Professionals

Easily calculate daily nutrient recommendations for dietary planning based on the National Academy of Sciences’ Institute of Medicine’s DRI recommendations.

DRI book cover DRI Nutrient Reports

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

DRI Process Reports

Find details on how the DRIs are developed.

DRI Related Reports

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

DRI Tables and Application 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.