Associations between Diet Quality and Body Composition in Young Children Born with Very Low Body Weight

Meghan McGee1,2, Sharon Unger1,3,4,5, Jill Hamilton1,3,6

  • 1Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.

The Journal of Nutrition
|October 7, 2020
PubMed

Insights

Improving diet quality in children born very low birth weight (VLBW) with obese mothers may prevent excess adiposity. Higher diet quality scores were linked to reduced BMI and subscapular z-scores in this VLBW cohort.

Area of Science:

  • Pediatric Nutrition
  • Public Health
  • Metabolic Health

Background:

  • Infants born very low birth weight (VLBW) face higher risks of adult adiposity and metabolic diseases.
  • Childhood diet quality is a potential predisposing factor, but its association with body composition in VLBW individuals remains understudied.

Purpose of the Study:

  • To investigate the relationship between diet quality (using the Healthy Eating Index-2010; HEI-2010) and body composition in 5.5-year-old children born VLBW.
  • To determine if HEI-2010 scores, fruit/vegetable intake, added sugar consumption, and macronutrient profiles correlate with adiposity in this population.

Main Methods:

  • A cohort study followed 158 children born VLBW (mean birth weight 1013g, gestational age 27.9 weeks).
  • Dietary intake was assessed using two 24-hour recalls (ASA24), calculating HEI-2010 scores.
  • Body composition (BMI, waist circumference, fat mass, fat-free mass) was evaluated using linear regressions.

Main Results:

  • The average HEI-2010 score was 58.2, with 27% of children having poor diet quality (scores ≤50).
  • Higher HEI-2010 scores showed an inverse association with BMI z-scores and subscapular z-scores, particularly in children of obese mothers.
  • A 10-point increase in HEI-2010 score correlated with a 0.5 SD decrease in BMI z-score.

Conclusions:

  • Enhancing diet quality in VLBW children, especially those born to obese mothers, is a potential strategy to mitigate excess adiposity.
  • This finding highlights the importance of nutritional interventions for VLBW survivors to improve long-term metabolic health.
Abstract

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