Half of all cats and dogs in the U.S. are overweight, some 20% being obese. So, what does that tell us about the human obesity epidemic? If cats and dogs are ballooning into caricatures of themselves at the same rate as humans, does that say anything about the causes of obesity?
It says something about the non-causes, perhaps. Dogs and cats don’t follow government guidelines for a low-fat, high-carb diet, so scratch that. It could be that pet food has become loaded with carbs, which seems possible.
Are pets eating a highly palatable diet, and thus setting themselves up for dopamine surges, tolerance, and an insatiable desire to eat more and more? I rather doubt it.
What this points to is a very unfashionable idea for the cause of obesity: volition. The same humans that don’t care about turning themselves into lardasses are doing the same to their pets by feeding them too much.