Every dog has a different sweet spot - this has to do with things like age, genetics, lifestyle, digestibility, and quality of their food, and any health issues. There are formulas that we and your vet use to estimate where to start, taking these things into consideration. After that, the ultimate answer comes from this question: Is your dog maintaining a healthy, lean body weight? If the answer is YES, you are feeding the perfect amount! If the answer is NO (they are getting a little too skinny or too chubby), then we need to make some gradual adjustments.