For rats on the high-fat diet, the group that ate both types of potato chips gobbled more food, gained more weight, and developed more fatty tissue than the rats that ate only the high-calorie chips.

FORBES: Why Eating Fake Fat Can Make You Real Fat

Nobody knows which group the Polish potato-throwers will join.

ECONOMIST: Charlemagne

Half of the rats in each group also were fed Pringles potato chips that are high in fat and calories.

FORBES: Why Eating Fake Fat Can Make You Real Fat