Reviews push for clearer evidence on functional pet food ingredients

A pair of recent review papers is helping sharpen how the pet food sector talks about “functional ingredients” and “bioactive compounds” in commercial diets for dogs and cats. One review in Veterinary Research Communications proposes clearer definitions and a framework for evaluating ingredients such as probiotics, prebiotics, metabiotics, exogenous enzymes, omega-3 fatty acids, antioxidants, and plant extracts across multiple health domains, including digestive, skin, immune, cognitive, urinary, and weight-related outcomes. A second review in Animals narrows in on plant-derived ingredients, highlighting polyphenols, plant extracts, microalgae, omega-3 sources, and cannabinoids as areas of growing interest, while also underscoring variability in evidence, dosing, and formulation challenges. (eurekamag.com)

Why it matters: For veterinary professionals, the takeaway isn’t that functional ingredients are suddenly settled science. It’s that the literature is moving toward a more structured, evidence-based vocabulary at a time when pet food and supplement claims are proliferating. That matters because U.S. regulators still draw a hard line around animal food claims: FDA says claims to cure, treat, prevent, or mitigate disease, or to affect body structure or function beyond food purposes, can make a product a new animal drug, while AAFCO labeling rules distinguish complete-and-balanced foods from products intended only for intermittent or supplemental feeding. (fda.gov)

What to watch: Expect more scrutiny on substantiation, labeling, and whether promising bioactives can show consistent benefit in finished commercial diets, not just in ingredient-level or experimental studies. (fda.gov)