Veterinary Feed Directives (VFDs) are regulations established by the United States Food and Drug Administration (FDA) to ensure the proper use of medicated feed for food-producing animals. The FDA introduced these directives to address concerns about the emergence of antimicrobial resistance and to promote the responsible use of antibiotics in animal agriculture.

A Veterinary Feed Directive is a written order issued by a licensed veterinarian that authorizes using certain medications in animal feed. It serves as a prescription for the use of medicated feed additives, including antibiotics, in treating, preventing, and controlling specific diseases in livestock.