Compliance & FDAUpdated August 2026By ReguSift Editorial Team
How to calculate Daily Value percentages for supplements and foods?
ReguSift is an FDA supplement facts label generator that turns Certificates of Analysis into compliant, print-ready supplement labels in minutes.
Daily Value (DV) percentages show how much a nutrient contributes to the recommended daily intake. The formula is:
DV% = (Amount per serving ÷ FDA Daily Value) × 100
For example:
- Vitamin C: 60 mg per serving, FDA DV = 90 mg → (60 ÷ 90) × 100 = 67%
- Calcium: 200 mg per serving, FDA DV = 1,300 mg → (200 ÷ 1,300) × 100 = 15%
ReguSift auto-calculates DV percentages using the latest FDA reference values (21 CFR 101.9 for foods, 21 CFR 101.36 for supplements). Learn more about DV calculations.