Years of study, six iterations per recipe, months of lab testing and one batch of green poop. The full story of how House of Snouts built its first sous vide recipe.

A new review looks at what "functional ingredients" actually do for dogs, and the answer goes well beyond digestion. Some ingredients in your dog's food do more than provide calories. Researchers call these functional ingredients, and a 2026 review found evidence of their effect across eleven different areas of a dog's health, from the gut and coat to joints, mood, memory and kidneys.