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Infant Nutrition and 12 and 18 Months Secure Base Behavior: An Exploratory Study.

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Early infant nutrition, including micronutrient status, is linked to infant attachment behaviors. These findings highlight the importance of nutrition beyond severe malnutrition for healthy infant development and bonding.

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Area of Science:

  • Developmental Psychology
  • Pediatric Nutrition
  • Attachment Theory

Background:

  • Limited research exists on the link between early nutrition and infant attachment.
  • Previous studies focused on physical growth and severe malnutrition, overlooking micronutrient deficiencies.
  • This study addresses the gap by examining multiple nutritional markers and attachment in a low-income population.

Purpose of the Study:

  • To investigate the association between multiple infant nutritional markers and infant attachment.
  • To determine if these associations extend beyond severely malnourished infants.
  • To explore the relationship between nutritional status and specific attachment behaviors.

Main Methods:

  • 172 Peruvian infants (12 months) and mothers from low-income families participated.
  • Nutritional status assessed via anthropometry, dietary intake, and iron status.
  • Attachment markers (secure base behavior, interaction quality, negative emotionality) rated using Q-sort techniques.
  • Follow-up assessment at 18 months on 77 infants.

Main Results:

  • Infant weight at 12 months positively correlated with mother-infant interaction quality.
  • Infant iron status at 18 months positively correlated with secure base behavior.
  • Associations remained significant after controlling for socioeconomic status and maternal education.

Conclusions:

  • Infant nutritional status, including micronutrient status, is associated with infant attachment markers.
  • These links are present even in infants without severe malnutrition.
  • Findings underscore the critical role of nutrition in early socio-emotional development.