Biological determinants linking infant weight gain and child obesity: current knowledge and future directions

Area of Science:

• Pediatrics
• Metabolic Health
• Public Health

Background:

• Childhood obesity is a major public health concern with epidemic proportions.
• Infant weight gain is linked to persistent overweight status and later obesity.
• Early life metabolic programming is a critical factor in obesity development.

Purpose of the Study:

• To review biological determinants of excess infant weight gain.
• To examine the role of infant feeding choices in metabolic programming.
• To propose mechanisms linking early weight gain to later obesity.

Main Methods:

• Literature review of current knowledge on infant weight gain determinants.
• Analysis of potential mechanisms of metabolic programming via feeding choices.
• Identification of knowledge gaps in infant obesity research.

Main Results:

• Infant weight gain in the first six months is highly predictive of later obesity risk.
• Feeding choices may program infant metabolism, influencing long-term weight status.
• Complex interactions involving endocrine, inflammatory, and oxidative stress factors are implicated.

Conclusions:

• Early infant weight gain, particularly in the first six months, is a critical window for obesity prevention.
• Understanding infant feeding's role in metabolic programming is crucial for intervention.
• Further research is needed on body fat distribution and maternal metabolic dysfunction's impact on infant metabolism.