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AAFCO Offers Feed Ingredient Definitions Guide

Learn about ingredients in commercial animal feed and pet food

Feed & Grain staff
Feed & Grain staff

The Association of American Feed Control Officials (AAFCO) is making available Chapter 6, Feed Terms and Ingredient Definitions, of its Official Publication through a free online version.

Chapter 6 lists terms and definitions, ingredients, and recommended quantities and scientific data on virtually all nutritive components of commercial pet food and animal feed. The intent of providing this information free of charge is to provide transparency to users of animal nutrition products about what comprises their animals’ diets.

Susan M. Hays, AAFCO Executive Director, said this move comes at the right time.

“Consumer awareness about the ingredients fed to livestock and pets continues to grow," says Hays. "We’ve extracted Chapter 6 as a standalone document to encourage this interest; so anyone, from farmers and ranchers to domestic pet owners, can download it free in PDF form and use for their specific needs.

"We feel this is a great educational resource for the public on animal nutrition, and it provides much-needed transparency to the manufacturing process.”

With the release of Chapter 6, animal feed and pet food purchasers can access the regulatory definitions of ingredients found in their animal feed or pet food. This access will enable consumers to evaluate what the ingredient names mean and understand how AAFCO works with the U.S. Food and Drug Administration to define new ingredients. [A1]

To learn more about AAFCO and download the free version of Chapter 6, visit

The Association of American Feed Control Officials (AAFCO) is a 501(c)(5) membership organization of state, federal and international animal feed control officials who adhere to state and federal laws as they regulate animal feed products in the advancement of animal and public health and safety.

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