Guide and advances on childhood obesity determinants: Setting the research agenda

Area of Science:

• Pediatrics
• Public Health
• Environmental Health

Background:

• Childhood obesity presents a significant global health challenge.
• Existing research indicates associations between early life factors and later obesity.
• Understanding the multifactorial nature of childhood obesity is crucial for effective interventions.

Purpose of the Study:

• To review and synthesize current knowledge on the determinants of childhood obesity.
• To identify key risk factors and potential protective elements influencing childhood weight.
• To highlight areas for future research in childhood obesity.

Main Methods:

• Literature review of studies on childhood obesity risk factors.
• Analysis of associations between prenatal exposures, diet, physical activity, and obesity.
• Examination of metabolic and epigenetic factors related to childhood obesity.

Main Results:

• Low birth weight and small for gestational age are linked to childhood obesity.
• Prenatal exposure to persistent organic pollutants and gut microbiota composition are associated with obesity.
• Ultra-processed food intake, physical inactivity, and environmental features are critical risk factors.
• Metabolomics and epigenetic research (DNA methylation, miRNAs) are essential for understanding gene-environment interactions.

Conclusions:

• Childhood obesity results from a complex interplay of genetic, environmental, and lifestyle factors.
• Prenatal exposures and early life conditions play a significant role.
• Further research into metabolomics and epigenetics is needed to elucidate specific molecular mechanisms and gene-environment interactions.