I have run across a problem with two of my dogs, my Boxer and my Bull Mastiff, concerning their weight. One is overweight and the other underweight. With my Boxer Isis I for some reason can't fatten her up. She is extremely skinny literally you can see hip bones, every rib and the bones in her butt. Yet everything I seem to give her won't put weight on her. I have tried cooking mac and cheese for her on the advice of a friend, giving her more food, more treats and nothing is working. Right now she is eating 4 cups of dog food per day but it doesn't make any difference. My Bull Mastiff Moose is on the other end of the scale. Since he was pulling so much I couldn't take him on walks now he goes on 2 walks a day and it hasn't made a difference. He only eats about 3 1/2 cups per day before he leaves it alone. I was wondering if there is anything you guys can think of to get weight on one dog and weight off the other. I am willing to fix up anything that might do the trick. The two things I can't do at least til I move is give them raw food or change dog foods. BTW they eat Taste of the Wild. Hope you guys can help.