Healthy Weight Formula Chicken & Vegetable Dog Food, 40 lbs Professional Dog Food, 40 lb Atwoods How Much To Feed A 40 Lb Puppy: Essential Feeding Guide How Much Dog Food Should a 40 Pound Dog Be Eating? Dog Care The. The nutrition your puppy receives in the first year can influence overall health later in life. Diamond Puppy Formula is precisely formulated to meet the special nutritional needs of rapidly growing puppies. Enhanced with DHA for proper brain and vision development, this formula is also formulated with omega fatty acids, antioxidants, and proper levels of protein and fat, to help your puppy grow up strong. This formula is also suitable for pregnant or nursing adult dogs. *The facility in which this food is made also makes food that may contain other ingredients, such as grains. Trace amounts of these other ingredients may be present. Features: Suitable for puppies as well as pregnant or nursing adult dogs DHA for proper brain and vision development Proper balance of fat, protein and other essential nutrients for proper growth