DRI Calculator (Nutrient Needs)
Calculate your daily recommended intake for calories, vitamins, and minerals.
Daily Estimated Needs:
Energy & Macros
Key Micronutrients
Understanding Dietary Reference Intakes (DRI)
Dietary Reference Intakes (DRIs) are a set of reference values used to plan and assess nutrient intakes of healthy people. They vary by age and gender and include:
Key Terms Defined
- RDA (Recommended Dietary Allowance): The average daily level of intake sufficient to meet the nutrient requirements of nearly all (97%–98%) healthy individuals.
- AI (Adequate Intake): Established when evidence is insufficient to develop an RDA and is set at a level assumed to ensure nutritional adequacy.
- UL (Tolerable Upper Intake Level): The maximum daily intake unlikely to cause adverse health effects.
Macronutrients vs. Micronutrients
Macronutrients provide energy (calories). This includes:
- Protein: Essential for tissue repair and muscle growth (4 kcal/g).
- Carbohydrates: The body's primary fuel source (4 kcal/g).
- Fats: Vital for hormone production and nutrient absorption (9 kcal/g).
Micronutrients are vitamins and minerals needed in smaller amounts, such as Iron for blood health, Calcium for bones, and Vitamin C for immunity.
Notes on This Calculator
This tool uses the **Mifflin-St Jeor equation** to estimate calorie needs based on your physical attributes and activity level. Micronutrient recommendations are based on standard NIH/Institute of Medicine charts for your age group.