In their role as best friend, dogs often happily adopt whatever lifestyle we provide. It's no surprise, then, that as people become heavier and more sedentary, so do dogs. Some 65% of adult Americans are overweight or obese. For dogs, that percentageranges from 40% to 60%, depending on the study you read. What's interesting is that the perception of what's "fat" changes. As the number of overweight people increases, "fat" starts looking like the norm.
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