Data Sources
Where NADA's food information comes from and the limits of nutrition, barcode and allergen data.
Last updated
NADA uses reference food data and barcode lookups to support protein and fibre logging. Food information can change and may contain errors.
USDA FoodData Central
U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, 2019. fdc.nal.usda.gov.
USDA FoodData Central is the source for relevant built-in reference foods. Read the FoodData Central data documentation.
Open Food Facts
Product data for marked ingredients: © Open Food Facts contributors, openfoodfacts.org. Database licensed under ODbL 1.0; individual contents under DbCL 1.0.
Read the Open Database License 1.0 and Database Contents License 1.0.
NADA may request packaged-food data from Open Food Facts when you scan a barcode. Open Food Facts is contributed by its users. It does not guarantee that a product record is complete, current or correct.
Product images, where displayed, are made available by Open Food Facts under the Creative Commons Attribution-ShareAlike licence. Packaging can contain other protected names, designs and material.
Data limits
Nutrition values can be averaged, rounded, estimated, missing, old or entered incorrectly. A barcode can also identify the wrong product or a product that has since changed.
Check the current packaging before relying on protein, fibre, ingredients, serving size or other product details. NADA is not an allergen database. Follow the manufacturer's allergen warning and seek professional advice where needed.
Local corrections
Corrections, custom portions and saved product changes you make in NADA remain on your device. NADA does not submit them to Open Food Facts.
Questions? Email founder@notadietapp.com.