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    When given twice as much food, women ate 530 calories more, men ate 812 calories more


    Posted by .(JavaScript must be enabled to view this email address)
    Friday, June 08, 2007 1:22 am Email this article
    When people are presented with larger portions of food, they eat more according to research from researchers at Pennsylvania State University in University Park, Pennsylvania, USA. 50% more food, 16% increase in calorie intake

    50% more food, women ate an extra 335 calories per day, men an extra 504 calories

    When people were given 50 percent more food, women consumed an extra 335 calories per day, and men consumed an extra 504 calories per day, an increased of 16 percent.

     

    100% more food, 26% increase in calorie intake

    100% more food, women ate an extra 530 calories per day, men an extra 812 calories

    When given twice as much food (100 percent more food), women ate an extra 530 calories per day, while men ate an additional 812 calories per day, an increase of 26 percent.

     

    Conclusion

    Conclusion: Increasing portion size, increases calorie intake

    “Increasing the portion size of all foods resulted in a significant increase in energy intake that was sustained over 2 days,” the researchers concluded.

    “These data support suggestions that large portions are associated with excess energy intake that could contribute to increased body weight.”

     

    Subjects

    Subjects: 32 adults

    The study was conducted with 32 adults from a university community.

     

    Study Conditions

    Conditions: Feed 2 days a week for 3 weeks

    On two consecutive days in each of three weeks, subjects were feed meals in a controlled setting that contained the normal amount of calories that they ate, one-and-a-half times the amount of calories that they ate, or twice as many calories as they ate.

    They were also given snacks to eat between meals.

    The increased calorie consumption was the same on each of the two days.

    REFERENCE

    Rolls BJ, Roe L, Meengs J. Larger portion sizes lead to a sustained increase in energy intake over 2 days. J Am Diet Assoc. 2006 Apr, 106(4):543-49.

    AUTHOR’S CONTACT INFORMATION

    Barbara Rolls
    Department of Nutritional Sciences
    The Pennsylvania State University
    226 Henderson Building
    University Park, PA 16802-6501, USA
    .(JavaScript must be enabled to view this email address)

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