FDA Daily Values: RDI vs DRV
RDI for 29 micronutrients and DRV for 8 macronutrients with % Daily Value.
Overview
This guide focuses specifically on United States of America implementation of recommended daily intakes through FDA regulations. For a broader understanding of the universal concept of recommended intakes, see Recommended Daily Intakes.
US-Specific Context
The "% Daily Value" on US nutrition labels represents a percentage based on two distinct FDA standards:
- RDI (Reference Daily Intake): For vitamins and minerals (29 micronutrients, 4 mandatory)
- DRV (Daily Reference Value): For macronutrients and food components (8 nutrients, all mandatory)
Together, these standards form what consumers know as "Daily Values" (DV).
Understanding the distinction between RDI and DRV matters for:
- Regulatory Compliance: Accurate nutrition labeling requirements under FDA regulations
- Consumer Education: Helping people interpret US nutrition labels correctly
- Product Development: Reformulating products to meet nutritional goals for the US market
Understanding Daily Values
What is % Daily Value?
The % Daily Value (%DV) indicates the contribution of a nutrient in a serving of food to a total daily diet. The FDA bases these calculations on a 2,000 calorie reference diet for adults and children 4 years and older.
%DV Interpretation Guidelines:
- 5% DV or less = Low in that nutrient
- 20% DV or more = High in that nutrient
Nutrients to limit (saturated fat, sodium, added sugars) should have lower %DV values. Nutrients to increase (fiber, calcium, vitamin D) should have higher %DV values.
RDI (Reference Daily Intake)
RDI represents the daily intake level of essential vitamins and minerals. These are micronutrients the body requires in small amounts but cannot produce independently.
- Applies to: 29 micronutrients (4 mandatory, 25 voluntary)
- Regulatory source: 21 CFR § 101.9(c)(8)(iv) - Table 1
Complete RDI Table (Adults & Children ≥4 years)
Mandatory Nutrients (4)
| Nutrient | RDI Value | Unit |
|---|---|---|
| Vitamin D | 20 | µg |
| Calcium | 1,300 | mg |
| Iron | 18 | mg |
| Potassium | 4,700 | mg |
Voluntary Nutrients (25)
| Nutrient | RDI Value | Unit |
|---|---|---|
| Vitamin A | 900 | µg RAE |
| Vitamin C | 90 | mg |
| Vitamin E | 15 | mg α-tocopherol |
| Vitamin K | 120 | µg |
| Thiamin (Vitamin B1) | 1.2 | mg |
| Riboflavin (Vitamin B2) | 1.3 | mg |
| Niacin (Vitamin B3) | 16 | mg NE |
| Vitamin B6 | 1.7 | mg |
| Folate | 400 | µg DFE |
| Vitamin B12 | 2.4 | µg |
| Biotin | 30 | µg |
| Pantothenic Acid | 5 | mg |
| Choline | 550 | mg |
| Chromium | 35 | µg |
| Copper | 0.9 | mg |
| Iodine | 150 | µg |
| Magnesium | 420 | mg |
| Manganese | 2.3 | mg |
| Molybdenum | 45 | µg |
| Phosphorus | 1,250 | mg |
| Selenium | 55 | µg |
| Zinc | 11 | mg |
| Chloride | 2,300 | mg |
| Sodium | 2,300 | mg |
| Fluoride | 4 | mg |
Voluntary nutrients become mandatory when added to a product or a nutrient content claim is made.
DRV (Daily Reference Value)
DRV represents the daily intake level of macronutrients and food components that provide energy or affect chronic disease risk.
- Applies to: 8 macronutrients and food components
- Regulatory source: 21 CFR § 101.9(c)(9) - Table 2
- Based on: 2,000 calorie diet
Complete DRV Table
| Nutrient | DRV Value | Unit | Mandatory | Notes |
|---|---|---|---|---|
| Total Fat | 78 | g | Y | Based on 35% of calories |
| Saturated Fat | 20 | g | Y | Less than 10% of calories |
| Cholesterol | 300 | mg | Y | Upper limit |
| Total Carbohydrate | 275 | g | Y | Based on 55% of calories |
| Dietary Fiber | 28 | g | Y | 14g per 1,000 calories |
| Added Sugars | 50 | g | Y | Less than 10% of calories |
| Protein | 50 | g | Y | Based on 10% of calories |
| Sodium | 2,300 | mg | Y | Upper limit (also in RDI) |
Mandatory (Y): Must always appear on Nutrition Facts label.
FDA Demographics
The FDA defines 4 demographic groups for nutrition labeling purposes under 21 CFR § 101.9:
| Demographic Group | Age Range | Special Notes |
|---|---|---|
| Adults & Children | ≥ 4 years | Default reference group (2,000 cal diet) |
| Infants | 0-12 months | Separate DV values apply |
| Children | 1-3 years | Separate DV values apply |
| Pregnant & Lactating | Varies | Separate DV values apply |
Most nutrition labels use the Adults & Children ≥4 years values as these represent the general population reference.
Regulatory Compliance
FDA Regulations Reference
The complete legal framework for Daily Values appears in the Code of Federal Regulations:
- Primary Regulation: 21 CFR § 101.9 - Nutrition labeling of food
- RDI (Table 1): 21 CFR § 101.9(c)(8)(iv)
- DRV (Table 2): 21 CFR § 101.9(c)(9)
When Voluntary Nutrients Become Mandatory
Nutrients marked as voluntary (N) in the tables above become mandatory when:
- The nutrient is added to the product (fortification)
- A nutrient content claim is made (e.g., "High in Vitamin C")
- The product is a dietary supplement
Example: A cereal fortified with Vitamin C that claims "Excellent Source of Vitamin C" must declare Vitamin C on the label with its %DV.
Related Concepts
- Nutrient - Understanding the different types of nutrients
- Nutrition Fact - How nutrients appear on food labels
- Serving Size - Standardized quantities for nutrition labeling
- Recommended Daily Intakes - Overview of recommended daily intakes
Official Resources
FDA Guidance Documents
- Daily Value on the Nutrition and Supplement Facts Labels - Consumer-friendly FDA explanation
- Changes to the Nutrition Facts Label - Overview of 2020 label updates
Legal References
- Electronic Code of Federal Regulations (eCFR) - Title 21, Part 101.9 - Complete regulation text
- FDA Labeling & Nutrition Guidance Documents - Industry guidance