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Establishing 24-Hour Urinary Sucrose Plus Fructose as a Predictive Biomarker for Total Sugars Intake.

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Area of Science:

  • Nutritional Biomarkers
  • Dietary Assessment
  • Public Health Nutrition

Background:

  • Investigating 24-hour urinary sucrose and fructose (24uSF) as a biomarker for total sugars intake.
  • Comparing biomarker performance across different populations (UK and Arizona).

Purpose of the Study:

  • To determine if 24uSF meets the criteria for a predictive biomarker of total sugars intake.
  • To assess the generalizability of a predictive model across diverse populations.

Main Methods:

  • Utilized data from two feeding studies (UK and Arizona) with controlled diets.
  • Employed linear mixed models to relate 24uSF to total sugars and personal characteristics.
  • Validated the Arizona-calibrated model for estimating total sugars intake in the UK population.

Main Results:

  • Model coefficients for total sugars were similar between UK and Arizona studies.
  • The Arizona predictive equation accurately estimated UK total sugar intakes.
  • Model stability was confirmed across various subpopulations within the Arizona study.

Conclusions:

  • 24-hour urinary sucrose and fructose (24uSF) demonstrates criteria for a predictive biomarker of total sugars intake.
  • The developed biomarker model shows promise for cross-population applicability.
  • Further validation in diverse populations is recommended.