They probably feed it a lot of table scraps and "human food" (which is terrible for us as well).  Most of us would be better of if our diets were similar to our pets: very low starch, very low sugar, normal protein and high fat.  If someone is just overweight, it's an education problem. Fat = good, carbs (except fibre) = bad. The worst part of bacon, eggs and toast is the toast. It has more energy than the bacon and eggs combined. Also the insulin response short circuits your body burning energy from the fat, by kick you out of ketosis. Now obesity, that's just food addiction. Get some help.