Omega-3 Levels at Birth Linked to Childhood Attention and Memory Patterns

This study looked at omega-3 fatty acid levels measured in umbilical cord blood at birth and tracked how children’s attention, working memory, and fluid intelligence changed from age 5 to 15. Researchers followed 953 children from a Spanish birth cohort, measuring three types of omega-3s: ALA (a plant-based omega-3), DHA, and EPA.

Children with higher cord blood levels of ALA and DHA tended to show less inattentiveness overall, and higher DHA was linked to better working memory on average. When researchers looked at how these effects changed with age, the patterns became more nuanced: higher ALA was tied to early advantages in attention and reasoning skills, but this edge faded over time. DHA, on the other hand, was associated with working memory advantages early in childhood that also diminished with age, but was linked to steadier, ongoing improvements in attention and fluid intelligence as children got older.

The authors suggest that ALA and DHA may relate to cognitive development in different ways depending on the child’s age and the specific mental skill being measured, though the study is observational and cannot prove the omega-3 levels caused these differences.