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February 14, 2026European Journal of NutritionOpen Access

Impact simulation of portion guidance on commonly consumed packaged food to reduce discretionary energy and public health sensitive nutrients in the United States, United Kingdom, and France

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Authors

LTLi-Tang TsaiNestlé (Switzerland)CDCharlotte DebrasNestlé (Switzerland)ESEric Antoine ScuccimarraNestlé (Switzerland)

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Implication

Modeling the effect of portion guidance reduces energy and added/free sugar in various populations, indicating improved nutritional quality.

Key Points

  • To model the impact of portion size guidance on reducing discretionary energy and improving nutritional quality.
  • Utilized nationally representative datasets (NHANES, NDNS, INCA3) for analysis.
  • Diet modeling adjusted portion sizes of energy-dense foods based on reference values.
  • Nutritional quality and adherence to WHO guidelines compared before and after portion adjustments.
  • Daily energy from discretionary foods decreased significantly across all datasets (NHANES, NDNS, INCA3).
  • Nutritional quality improved and reductions in public health-sensitive nutrients were observed.
  • Older age correlated with smaller reductions in discretionary energy and added/free sugar among participants in the UK and France.

Cite This Study

Tsai et al. (2026) studied this question.

synapsesocial.com/papers/698fd276306598e8538deb16https://doi.org/10.1007/s00394-025-03823-6
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Serving size guidance for consumers: is it effective?2012 · 66 citations
  2. 2Defining Energy-Dense, Nutrient-Poor Food and Drinks and Estimating the Amount of Discretionary Energy2022 · 30 citations
  3. 3Method to define recommended portion sizes for consumer guidance2025 · 6 citations