Reviews spotlight promise and limits of functional pet food ingredients
A pair of recent review papers is helping sharpen the language, evidence base, and expectations around “functional” pet nutrition. In Veterinary Research Communications, Xinzi Guo, Nisha Farooq, and Hehe Liu review how functional ingredients, bioactive compounds, and dietary supplements are being defined and used in commercial pet food, arguing for clearer classification and a more evidence-based approach to claims in dogs and cats. A second review in Animals focuses specifically on plant-derived functional ingredients, grouping them by phytochemical class and describing potential effects on oxidative stress, inflammation, immune function, the microbiome, lipid metabolism, skin health, and other outcomes in dogs and cats. Together, the papers reflect a broader shift in companion animal nutrition toward targeted ingredients with proposed health effects beyond basic nutrient adequacy, while also underscoring that the clinical evidence base remains uneven. (sciencedirect.com)
Why it matters: For veterinary professionals, the reviews are a useful reminder that interest in functional ingredients is outpacing standardization. WSAVA’s nutrition resources emphasize evidence-based assessment of diets and careful scrutiny of manufacturer quality control and substantiation, which is especially relevant as pet parents encounter more products marketed around botanicals, omega-3 sources, probiotics, postbiotics, cannabinoids, pigments, and other bioactives. The practical takeaway is that these ingredients may have promise, but recommendations still need to be anchored in formulation quality, safety, dose, species-specific evidence, and whether claims are supported in complete diets rather than extrapolated from ingredient-level or human data. (wsava.org)
What to watch: Expect more pressure for better definitions, stronger clinical trials in dogs and cats, and clearer boundaries between nutrition support, supplement use, and drug-like health claims in commercial pet products. (sciencedirect.com)