It's been said that a tired dog is a good dog — and fetch and tug toys play a large role in ensuring dogs are getting enough exercise. (petbusiness.com)
I do believe in changing things up now and then, to make sure dogs are getting all the nutrients they might need, as each brand or variety is different. (mysweetpuppy.net)
The reason for that is simple: Dogs are getting too much food and not enough exercise. (animalbehaviorcollege.com)