Infant fat mass and later child and adolescent health outcomes: a systematic review

Federica Amati1, Lucy McCann2, Eurídice Castañeda-Gutiérrez3

  • 1Department of Primary Care and Public Health, Imperial College London, London, UK f.amati@imperial.ac.uk.

PubMed

Insights

Infant body composition, particularly fat mass, may predict later obesity and body mass index (BMI). However, more standardized research is needed to confirm infant adiposity as a reliable biomarker for future health risks.

Area of Science:

  • Pediatric Health
  • Nutritional Science
  • Biomarkers

Background:

  • Obesity and excess adiposity are major contributors to metabolic and cardiovascular diseases.
  • Early identification of at-risk individuals is crucial for effective preventive strategies.
  • Infant body composition is a potential early indicator of future health trajectories.

Approach:

  • A systematic review was conducted, searching Embase, PubMed, and Cochrane databases for studies published between January 1946 and February 2022.
  • Included studies assessed infant body composition (0-2 years) using in vivo methods, excluding body mass index (BMI).
  • 30 high-quality studies were included in the narrative synthesis, examining health outcomes after 2 years of age.

Key Points:

  • The strongest associations observed were between infant fat mass and later fat mass (7 studies) and later BMI (5 studies).
  • Eleven assessed health outcomes showed no relationship with infant adiposity.
  • Outcome measurements ranged from 2 to 16 years post-infancy.

Conclusions:

  • Current evidence suggests a link between infant adiposity and future adiposity or BMI.
  • The reliability of infant body composition as a biomarker for future health remains inconclusive.
  • Standardized, well-designed studies are necessary to validate infant body composition for predicting later health outcomes.
Abstract

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