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.

Find details on how the DRIs are developed.

Use this tool to calculate daily nutrient recommendations for dietary planning based on the Dietary Reference Intakes (DRIs). These represent the most current scientific knowledge on nutrient needs, developed by the National Academy of Science’s Institute of Medicine. Individual requirements may be higher or lower than the DRIs.

 Find applications in dietary assessment and planning.

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

• 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.

Find reports by National Academies of Sciences, Engineering and Medicine (NASEM) Health and Medicine Division