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Potato Chips Cited as Culprit in U.S. Weight Gain, Harvard Says

Putting aside a 1-ounce bag of potato chips each day in favor of yogurt can save almost a pound of weight gain every four years, according to a Harvard University analysis of the dietary habits of 120,000 Americans.

People in the U.S. add almost 1 pound a year on average, with those who consume lots of potato chips packing on the most weight and yogurt eaters cutting heft, according to the report published yesterday in the New England Journal of Medicine. A daily serving of potato chips over a 20-year period led to an extra 1.69 pounds (0.8 kilograms) every four years, while yogurt helped people lose about 0.82 pounds, the study found.