“We expected the overweight dog to do anything to get food, but in this test, we saw the opposite. The overweight dogs took a negative view,” test leader Orsolya Torda said.

“If a situation is uncertain and they cannot find food, the obese dogs are unwilling to invest energy to search for food – for them the main thing is to find the right food with least energy involved.”

The behavior had possible parallels with overweight people who see food as a reward, said the paper published in the Royal Society Open Science journal.

Fat dogs teach humans new tricks about obesity: Hungarian study

hmmmm