USDA Reference Library
Public Domain Compliance
Scientific Nutrition Databases
NutriLabel Pro sources its underlying chemistry metrics directly from the United States Department of Agriculture archives. Deep-dive into the verified legal documents below.
Official API
USDA FoodData Central
The primary official integrated food and nutrient data system for agricultural research and consumer services.
DatabaseRead Source
Legal
FDA Guidance for Industry: Nutrition Labeling
Official CFR 101.9 regulatory guidance describing rounding rules, mandatory font sizes, and layout structures.
Regulatory GuideRead Source
Technical
Standard Reference Legacy Release
Historic nutritional composition data for over 7,000 food items, serves as foundational USDA tracking.
Data ArchiveRead Source
Small Business
Cottage Food Regulations by State
Comprehensive directory summarizing labeling law allowances and limitations for non-commercial kitchens.
DirectoryRead Source