In general, puppies and senior dogs will require certain amounts of food based on activity level. (vetinfo.com)
Each dog is an individual requiring its own certain amount of food to maintain optimum body condition. (extension2.missouri.edu)
The PiYo eating plan is based on whole foods but allows people to enjoy certain amounts of each food group and varied foods, depending on calorie needs and, of course, how much you'll be burning. (getrippedathome.org)