Hardworking sporting dogs benefit from higher proportions of fat in their diet. Why? Because, a dog’s metabolism relies primarily on fat for energy during rest and light to moderate intensity exercise. Ingesting higher levels of fat in the diet actually “primes” or “metabolically conditions” an active dog’s metabolism, even when not active or exercising1. So while a greater proportion of fat in the diet helps to deliver more calories to an exercising dog, another important benefit is that it helps to optimize a dog’s metabolism.