Growth and development in term infants fed long-chain polyunsaturated fatty acids: a double-masked, randomized,...

Area of Science:

• Pediatrics
• Nutrition Science
• Developmental Biology

Background:

• Long-chain polyunsaturated fatty acids, including arachidonic acid (AA) and docosahexaenoic acid (DHA), are crucial for infant development.
• The optimal levels and impact of supplementing infant formulas with AA and DHA remain an area of active research.

Purpose of the Study:

• To evaluate the effects of dietary intake of AA and DHA on multiple indices of infant growth and development.
• To compare outcomes in infants fed formula with or without AA+DHA supplementation against breastfed reference groups.

Main Methods:

• A double-masked, randomized trial involving term infants fed formula with or without AA+DHA for one year.
• Reference groups of breastfed infants were also studied.
• Outcomes included plasma and red blood cell AA and DHA levels, growth, visual acuity, information processing, general development, language, and temperament from birth to 14 months.

Main Results:

• Infants receiving AA+DHA supplemented formula had higher plasma and red cell levels of these fatty acids compared to controls, comparable to breastfed infants.
• No significant differences were observed in any developmental test results between the supplemented and control formula groups.
• Breastfeeding showed no demonstrated developmental advantages over formula in this study, though demographic differences were noted.

Conclusions:

• Supplementing standard infant formula with AA and DHA does not enhance growth, visual acuity, information processing, general development, language, or temperament in healthy term infants.
• Current formula formulations with adequate essential fatty acids appear sufficient for typical infant development.
• Further research may explore specific infant populations or different supplementation strategies.