Question 1

What is DRI?

Accepted Answer

DRI stands for Dietary Reference Intakes — a set of daily nutrient recommendations published by the National Academies of Sciences. The DRI Calculator personalizes those recommendations to your age, sex, height, weight, activity level, and life stage, covering 14 vitamins, 15 essential minerals, and macronutrients.

Question 2

DRI vs RDA — what's the difference?

Accepted Answer

RDA (Recommended Dietary Allowance) is one type of DRI: the daily intake that meets the needs of 97–98% of healthy people. DRI is the umbrella term covering RDA, AI (Adequate Intake, used when an RDA can't be set), UL (Tolerable Upper Intake Level), and AMDR (Acceptable Macronutrient Distribution Range). Our results show all four where they exist.

Question 3

How is DRI different from MyPlate?

Accepted Answer

MyPlate tells you how much of each food group to eat (cups of vegetables, ounces of grains). DRI tells you the specific nutrients those foods need to provide — milligrams of magnesium, micrograms of vitamin B12. Use MyPlate to plan meals; use DRI to check whether your meals meet your nutrient needs.

Question 4

How accurate is this calculator for me?

Accepted Answer

The recommendations are population averages tuned to age, sex, and life stage — designed to cover the needs of nearly all healthy people. They're a strong starting point, not a clinical prescription. If you have a medical condition, are pregnant or lactating, or take medications that affect nutrient absorption, talk to a registered dietitian or doctor for personalized targets.

Question 5

Where does this data come from?

Accepted Answer

All values are pulled from the Dietary Reference Intakes published by the National Academies of Sciences, Engineering and Medicine (1997–2019). The Estimated Energy Requirement (calorie target) uses the IOM EER equations; vitamin and mineral targets use the most recent DRI update for each nutrient. See our methodology page for full citations.

DRI Calculator — Daily Vitamins, Minerals & Macronutrients by Age (2026)