[911nut]

My Airedale is going on 10 years old and she's been +/- 2 lb. her whole life. All I've done is follow the recommend quantity based on adult body weight on the food bag. As for exercise, she makes sure I take her on nightly walks
I've heard of adding green beans to the food from breeders who show their dogs. I also heard of a Purina food that has crushed peanut hulls in it to add bulk but I have no experience with that food.
I'd recommend staying away from the popular and cheap dog foods. I'm limited as to what I can feed my dog as she has a food allergy but at the moment she is eating Nutri Source Pure Vita and really likes it.