Portion size

Portion size is the amount of food, measured in calories or weight, apportioned as a serving at a meal. Portion size is a significant consideration in nutrition and weight control.[1]

A distinction is made between a portion size as determined by an external agent, such as a food manufacturer, chef, or restaurant, and a 'self selected portion size' in which an individual has control over the portion in a meal or snack.[2] Self-selected portion size is determined by several factors such as the palatability of a food and the extent to which it is expected to reduce hunger and to generate fullness (see expected satiety).

Evidence from a systematic review of 72 randomized controlled trials indicates that people consistently eat more food when offered larger portion, package, or tableware sizes rather than smaller size alternatives.[3]

See also

Serving size

Expected satiety

References

  1. ↑ "Portion size". MedlinePlus. U.S. National Institutes of Health. Archived from the original on January 4, 2015. Retrieved January 28, 2015.
  2. ↑ Brunstrom, J.M. (2014). "Mind over platter: pre-meal planning and the control of meal size in humans". International Journal of Obesity. 38: S9–12. doi:10.1038/ijo.2014.83.
  3. ↑ Hollands, GJ; Shemilt, I; Marteau, TM; Jebb, SA; Lewis, HB; Wei, Y; et al. (September 14, 2015). "Portion, package or tableware size for changing selection and consumption of food, alcohol and tobacco". Cochrane Public Health Group. Cochrane Database of Systematic Reviews (9): Art. No.: CD011045. doi:10.1002/14651858.CD011045.pub2.


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