The FDA regulates that can of cat food, bag of dog food, or box of dog treats or snacks in your pantry. The FDA’s regulation of pet food is similar to that for other animal feeds. The Federal Food, Drug, and Cosmetic Act (FFDCA) requires that pet foods, like human foods, be safe to eat, produced under sanitary conditions, contain no harmful substances, and be truthfully labeled. In addition, canned pet foods must be processed in conformance with the low acid canned food regulations to ensure the pet food is free of viable microorganisms (see Title 21 Code of Federal Regulations (CFR), Part 113).
FDA also reviews specific claims on pet food, such as “maintains health of urinary tract,” “low magnesium,” “reduces plaque and tartar,” “reduces hairballs in cats,” and “improved digestibility.” Guidance for collecting data to make a urinary tract health claim is available in Guideline 55 on the CVM portion of the FDA internet site. Ref:fda.gov