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Age of introduction of complementary feeding and overweight in adolescence and adulthood: A systematic review

Cybele Sodré Araújo1, Priscila Ribas de Farias Costa2, Valterinda Alves de Oliveira Queiroz2

  • 1Postgraduate Program in Nutrition, Federal University of Bahia (UFBA), Salvador, Brazil.

Maternal & Child Nutrition
|February 16, 2019
PubMed

Insights

Introducing solids too early or late may not link to adolescent overweight. This systematic review found inconsistent evidence on the age of complementary feeding and excess weight. More research is needed.

Area of Science:

  • Pediatrics
  • Nutrition Science
  • Public Health

Background:

  • Early infant feeding practices, including diet type and timing of complementary foods, are suspected to correlate with adolescent and adult overweight.
  • Understanding this relationship is crucial for public health interventions aimed at preventing obesity.

Approach:

  • A systematic review was conducted following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines.
  • Literature searches were performed across multiple databases (Medline/PubMed, Web of Science, Embase, Lilacs, Ovid, Scopus) from June to December 2017.
  • Nine studies were included after screening 103 articles, focusing on the association between the age of complementary feeding introduction and excess weight.

Key Points:

  • Only three of the nine reviewed studies reported a statistically significant association between the age of introducing complementary feeding and overweight.
  • Significant heterogeneity was observed across studies, primarily due to variations in defining the age of complementary feeding introduction and classifying overweight.
  • The overall evidence quality was limited by methodological differences and inconsistent findings.

Conclusions:

  • The current evidence is insufficient to establish a consistent association between the age of complementary feeding introduction and the development of overweight in adolescence and adulthood.
  • Further high-quality research with standardized methodologies is required to clarify this relationship.
  • Public health recommendations regarding infant feeding and weight management need to be based on more robust scientific evidence.

Keywords:
adolescentadulthoodcomplementary feedingobesityoverweightsystematic review

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