Welcome to the The Incredible Edible Egg™ Eggcyclopedia, where you can access the latest egg information from A-Z. The Eggcyclopedia was developed by the American Egg Board (AEB) on behalf of America's egg farmers who are committed to caring for their hens and producing high-quality eggs for you and your families.

Just click on any letter below to bring up a list of egg terms and their related definitions.

Nutrient Labeling and Education Act

The 1990 Nutrition Labeling and Education Act requires most foods, including eggs, to carry a nutrition label. Current labels express nutrients as a percentage of Daily Values (DVs) for a 2,000-calorie diet, rather than a percentage of the U.S. Recommended Daily Allowances (U.S. RDAs).

Eggs are produced by nature, not processed according to a formula, and may differ somewhat in nutrient content based on the individual hen and her diet, even within the same size. Based on assay figures and labeling rounding rules for nutrients, a label on a typical one-dozen carton of large eggs might read as follows:


– See Daily Reference Values (DRVs), Daily Values (DVs), U.S. Recommended Daily Allowance