• Datafile Name: CaloriesDownload .TXT file
  • Datafile Subject: Consumer,
  • Story names: Counting Calories,
  • Reference: Allison, D., Heshka, S., Sepulveda, D., and Heymsfield, S. (1993), "Counting Calories - Caveat Emptor," JAMA, v. 270, pp. 1454-1456.
  • Authorization: Contact authors
  • Description: Results of a survey of 40 food items claiming to be "lite," "reduced-calorie," "low-calorie," "diet," "low-fat," "no-fat," or "health" foods. Each food is classified based on its distribution as either nationally advertised, regionally distributed, or locally prepared.

    The researchers measured the caloric content of each food by bomb calorimetry, and converted these readings into an estimate of total metabolizable energy (the type of energy the calories on a food label are supposed to reflect). Finally, they calculated the percentage difference between the measured calories and the labeled calories for each item and per gram.

  • Number of Cases 40
  • Variable Names:
    1. Food: Kind of food
    2. Per_gram: Percentage difference between measured calories and labeled calories per gram (100% x (measured-labeled)/labeled)
    3. Per_item: Percentage difference between measured calories and labeled calories per item
    4. Classification: N if nationally advertised, R if regionally distributed, L if locally prepared

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