Data Sources

NADA uses nutrition data sources to make protein and fiber logging faster, but users should still check important details.

Last updated: 28 June 2026

USDA FoodData Central

U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, 2019. fdc.nal.usda.gov.

USDA data powers bundled baseline food data where applicable.

Open Food Facts

Barcode-derived product data may come from Open Food Facts contributors.

Open Food Facts may be used when NADA looks up packaged foods by barcode.

Data limits

Nutrition data can be incomplete, approximate, unavailable, stale, or wrong. Check packaging and labels where the details matter, including allergens and suitability.

Local corrections

Saved user corrections and portions remain local to the device in NADA v1 and are not sent back to Open Food Facts.

Questions? Email founder@notadietapp.com.