Most pets have a small frame as compared to a human, and just a few extra pounds can have a dramatic effect on their life expectancy. Also, the extra weight can lead to other serious problems such as diabetes, heart disease, joint problems, skin irritations, and urinary tract disorders. A properly balanced, calorie controlled diet is essential for safe, efficient weight loss. Simply feeding less of the current diet may not provide enough essential nutrients, and may lead to deficiencies. An effective calorie restrictive diet should be low in fat, nutrient-rich, palatable, calorie restricted, and should satisfy your pet's appetite.Royal Canin