Offal, also known as organ meats or variety meats, the literal definition of offal is to “fall off”—that is, whatever falls off the skeleton during the butchering process.
Formulating a complete and balanced meat-based canine diet can be surprisingly tricky. Attempts can easily come up short on nutrition or long on calories if they don’t follow well-designed guidelines
I always strive to make canine diets complete and balanced, using whole foods and that includes vegetables. Some people who feed “prey-model diets” think that vegetables don’t belong in the canine diet, and question my recommendation of feeding vegetables to dogs, and a much lesser amount for cats.
Simply, it means it meets the latest scientific standards. Or that the food’s nutrient content meets or exceeds standards developed by various American and European agencies based upon the latest scientific studies of nutrient requirements of dogs and cats.