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Serving size guidance for consumers: is it effective?

G P Faulkner1, L K Pourshahidi, J M W Wallace

  • 1Northern Ireland Centre for Food and Health (NICHE), University of Ulster, Cromore Road, Coleraine BT52 1SA, Co. Londonderry, UK.

The Proceedings of the Nutrition Society
|August 11, 2012
PubMed
Summary
This summary is machine-generated.

Serving size guidance often confuses consumers due to inconsistent messages and unclear terminology. More research is needed to make portion size (PS) and serving size (SS) recommendations understandable and actionable for public health.

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Area of Science:

  • Public Health Nutrition
  • Consumer Behavior Studies
  • Food Policy and Regulation

Background:

  • Increasing portion sizes (PS) are linked to overeating and rising obesity rates globally.
  • There is a significant lack of data on the effectiveness of serving size (SS) guidance in public health initiatives.
  • Understanding consumer perception and adherence to SS guidance is crucial for effective dietary interventions.

Purpose of the Study:

  • To evaluate worldwide serving size (SS) guidance schemes.
  • To assess consumer understanding, usability, and acceptability of SS guidance.
  • To identify barriers affecting consumer uptake and adherence to SS recommendations.

Main Methods:

  • A systematic review of 87 worldwide serving size (SS) guidance schemes identified through targeted and untargeted searches.
  • Analysis of existing literature on consumer understanding, behavior, and barriers related to portion size (PS) and SS guidance.
  • Synthesis of data regarding the impact of SS guidance on consumer choices and eating habits.

Main Results:

  • Identified SS guidance schemes often convey inconsistent and conflicting messages regarding portion size (PS) selection.
  • Consumers struggle to understand terms like 'portion size' and 'serving size,' frequently used interchangeably, and prefer household measures over weights.
  • Limited studies show equivocal results on the direct impact of SS guidance on consumer behavior, with significant barriers to adherence.

Conclusions:

  • Current serving size (SS) guidance lacks clarity and consistency, hindering consumer understanding and adoption.
  • Barriers such as exposure to larger portion sizes (PS), distorted norms, and language issues impede adherence.
  • Further research is essential to develop more understandable, usable, and acceptable SS guidance for improved public health outcomes.