Growth and Neurodevelopment to 18 Months in Infant With Varying sn-2 Palmitate Levels in Formula: An Observational...

Area of Science:

• Pediatric Nutrition
• Infant Development
• Lipid Metabolism

Background:

• Sn-2 palmitate, a breast milk lipid, enhances palmitic acid absorption and prevents gut soaping.
• Infant formulas with high sn-2 palmitate levels may influence infant growth and neurodevelopment.
• Long-term effects of sn-2 palmitate exposure from infant formula require further investigation.

Purpose of the Study:

• To evaluate the association between infant formula feeding and sn-2 palmitate levels with infant growth and neurodevelopment up to 18 months.
• To compare the long-term outcomes of infants fed high sn-2 palmitate formula versus low sn-2 palmitate formula.

Main Methods:

• Follow-up study of 1-month-old infants using commercially available Japanese formulas classified as high (sn-2 ratio ≥ 50%) or low (< 50%) sn-2 palmitate.
• Associations between feeding volume of high/low sn-2 formula at 1 and 6 months and anthropometric z-scores or neurodevelopment (ASQ-3) at 9 and 18 months were analyzed.
• Multiple regression analysis was employed to assess the relationships.

Main Results:

• No significant association was found between feeding either low or high sn-2 formulas and anthropometric z-scores.
• A negative association was observed between low sn-2 formula intake at 1 month and communication scores at 18 months.
• No such association was found for high sn-2 formula intake.

Conclusions:

• Feeding infants formula with high sn-2 palmitate at 1 month was associated with a lower risk of reduced neurodevelopment at 18 months.
• High sn-2 palmitate formula may be beneficial for infant neurodevelopmental outcomes, particularly communication skills.
• Further research is warranted to confirm these findings and elucidate the mechanisms involved.