Ingredient lists and percentage labelling

On most packaged foods regulated by FDA, ingredients are listed by their common or usual names in descending order of weight. The first ingredient contributes the greatest weight at the time the product is made.

Labels also help identify major food allergens. A food’s Nutrition Facts panel reports nutrients and serving size, but it is not a substitute for reading the ingredient list when avoiding a specific substance.

Percentage declarations for particular ingredients are required in some countries and in certain U.S. labeling situations, but there is no universal U.S. rule requiring the percentage of every highlighted ingredient. Consumers should not assume that all products use the same percentage-labeling system.

RECOMMENDED RESOURCES

Food Ingredients and Colors — FDA

Explains ingredient declarations and the purposes of common ingredients.

Food Allergies — FDA

Major allergen labeling and consumer safety guidance.

How to Understand and Use the Nutrition Facts Label — FDA

How to interpret the Nutrition Facts panel.

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