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Method to define recommended portion sizes for consumer guidance.

Alison L Eldridge1,2, Evangelia Kotzakioulafi3, Charlotte Debras3

  • 1Nestlé Institute of Health Sciences, Nestlé Research, Vers-chez-les-Blanc, Lausanne, Switzerland. alison.eldridge@rdls.nestle.com.

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Summary

This study developed globally consistent portion size recommendations for 50 food groups. The methodology ensures clear guidance for consumers to make informed dietary choices regarding appropriate food portions.

Keywords:
Food-based dietary guidelinesPackaged foodsPortion recommendationPortion size

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Area of Science:

  • Nutrition Science
  • Public Health
  • Food Policy

Background:

  • Mandatory nutrition information on packaged foods lacks standardized serving sizes globally.
  • Inconsistent serving sizes hinder consumers' ability to make informed dietary choices.
  • A need exists for a unified methodology to establish global portion size recommendations.

Purpose of the Study:

  • To develop a methodology for establishing globally consistent portion size recommendations.
  • To create recommendations for both nutrient-dense and discretionary food groups.
  • To address the lack of regulation in serving sizes worldwide.

Main Methods:

  • A stepwise systematic approach was employed, integrating data from serving size regulations, food-based dietary guidelines (FBDG), and food intake data.
  • Global Portion Values (GPVs) were derived for 50 food groups by calculating the median of all input data.
  • Consistency of GPVs was evaluated using percentiles and dispersion metrics (median absolute deviations).

Main Results:

  • GPVs were calculated for 50 food groups across nine categories, including dairy, protein, grains, fruits/vegetables, and snacks.
  • Data inputs for portion values ranged from 6 to 18, with 88% of GPVs demonstrating consistency (dispersion < 25%).
  • Specific examples of GPVs include 240mL for milk, 90g for meat dishes, and 30g for chocolate, showing high consistency.

Conclusions:

  • A standardized approach for portion recommendations has been successfully developed.
  • These globally consistent portion recommendations can empower consumers to make informed food choices.
  • Adoption of these recommendations could lead to improved public health outcomes by promoting appropriate consumption levels.