Sara Langen

Eaters’ appetites swayed by portion sizes
Most people can’t stop eating after just one normal serving if there is extra food on their plates, Penn State researchers have shown.

This tendency, coupled with the spread of mega-portions, may be contributing to the American obesity epidemic. In the first systematic, controlled study of adult response to portion sizes, researchers found that the bigger the portion, the more the participants ate. On average, they ate 30% more from a five-cup portion of …

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