Eating the right portion sizes pays off, say Pennsylvania State University scientists, who found out how easily big servings lead to a calories overload.
On 2 consecutive days in each of 3 weeks, 32 subjects chose as many food portions as they wanted. But the serving portion sizes changed: Regular size portions during week one became 50% larger the second week and doubled during week three.
Compared with the first week, total daily calories jumped by 335 calories per day for women and 504 calories for men during the second week, and by an astonishing 530 calories for women and 812 calories for men in the last week.
To make controlling portion sizes super easy, print out this guide and carry it with you until you've committed it to memory.
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