Infant fatness and feeding practices: a longitudinal assessment

Area of Science:

• Pediatric Nutrition
• Infant Development
• Childhood Obesity Prevention

Background:

• Infant feeding practices, including bottle feeding and early solid food introduction, are debated as potential contributors to childhood overweight.
• Existing hypotheses suggest these early dietary factors may establish fatness trajectories continuing into later childhood.

Purpose of the Study:

• To investigate the association between infant feeding methods and the timing of solid food introduction with infant fatness.
• To examine whether infants who are fat at an early age tend to remain fat up to 18 months.

Main Methods:

• A longitudinal survey was conducted involving 403 infants from birth to 18 months of age.
• Data collected included feeding types (breastfeeding vs. bottle feeding) and the age of solid food introduction.
• Infant fatness was assessed at 6 months of age.

Main Results:

• No significant relationship was found between the type of milk feeding (breastfeeding or bottle feeding) and infant fatness at 6 months.
• The timing of solid food introduction in infancy did not correlate with fatness levels at 6 months.
• The study did not support the hypothesis that infants classified as 'fat' at an early stage consistently remain fat through 18 months of age.

Conclusions:

• Current evidence does not support the hypothesis that bottle feeding or early introduction of solids leads to infant overweight.
• Infant fatness is not reliably predicted by feeding type or the timing of solid food introduction in the first 18 months.
• The concept of 'fat infants remaining fat' was not substantiated by this longitudinal data.