A match may contain the product name, brand, pack size, ingredients, allergens and nutrition. Community data can be incomplete or outdated, so for allergens and ingredients the current label on the packaging in your hand always takes priority.
Knowledge base · Label and ingredients
Barcode scanning: what we know about a packaged product, and what we do not
A barcode can lead to a database record, but it does not in itself prove that the data is complete or current.