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Further evidence for sensitivity to energy density and a two-component model of meal size: Analysis of meal calorie intakes in Argentina and Malaysia.
Flynn, Annika N; Rogers, Peter J; Brunstrom, Jeffrey M.
Affiliation
  • Flynn AN; Nutrition and Behaviour Unit, School of Psychological Science, University of Bristol, 12a Priory Road, Bristol, BS8 1TU, United Kingdom. Electronic address: annika.flynn@bristol.ac.uk.
  • Rogers PJ; Nutrition and Behaviour Unit, School of Psychological Science, University of Bristol, 12a Priory Road, Bristol, BS8 1TU, United Kingdom.
  • Brunstrom JM; Nutrition and Behaviour Unit, School of Psychological Science, University of Bristol, 12a Priory Road, Bristol, BS8 1TU, United Kingdom; NIHR Bristol Biomedical Research Centre, University Hospitals Bristol and Weston, NHS Foundation Trust and University of Bristol, United Kingdom.
Physiol Behav ; 270: 114314, 2023 10 15.
Article in En | MEDLINE | ID: mdl-37536621
Previously, we demonstrated a non-linear association between meal caloric intake and meal energy density (ED, kcal/g) in data from a controlled trial in the US and from free-living participants in the UK [1]. In both datasets, meal caloric intake increased with ED in lower energy-dense meals (below ∼1.75 kcal/g) and decreased in higher energy-dense meals (above ∼1.75 kcal/g). In the current study, we sought to explore whether this pattern extends to data from free-living participants in Argentina (N = 2738 meals) and Malaysia (N = 4658 meals). Again, a significant breakpoint was found in both the Argentinean (2.04 kcal/g (SE = 0.06)) and Malaysian (2.17 kcal/g (SE = 0.06)) datasets with mean centered meal caloric intake increasing with ED below the breakpoint and decreasing above the breakpoint. These results lend further support for our two-component theoretical model of meal size (g) in which a volume signal is dominant in lower energy-dense meals and a calorie-content signal is dominant in higher energy-dense meals. Together, our research adds to evidence supporting human sensitivity to calories and exposes a complexity in the correspondence between meal energy content and meal size in everyday (non-manipulated) meals. Further research is needed to provide causal evidence for this sensitivity and whether individual variation impacts meal size and energy balance.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Energy Intake / Meals Type of study: Diagnostic_studies Limits: Humans Country/Region as subject: America do sul / Argentina / Asia Language: En Journal: Physiol Behav Year: 2023 Document type: Article Country of publication: United States

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Energy Intake / Meals Type of study: Diagnostic_studies Limits: Humans Country/Region as subject: America do sul / Argentina / Asia Language: En Journal: Physiol Behav Year: 2023 Document type: Article Country of publication: United States