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Studies on Portion Sizes

fittforlife.com Studies on Portion Sizes

Studies on portion sizes of snacks have had similar results.  Researchers on five different occasions gave men and women an afternoon snack of potato chips that were packaged in bags that looked the same except that they progressively increased in size (from 28g to 170g). For both men and women, the snack intake increased significantly as the package size increased. From the 170g bag, women ate 18% more and men 37% more than when served the 85g bag. Notably, when dinner was served several hours later, participants did not adjust their intakes to compensate for the differences in snack intake. Therefore the combined calorie intake from the snack and dinner increased significantly for both men and women when the larger snack was consumed. Studies on Portion Sizes


Originally published by the CDC