Original title: Omega-3 cord plasma proportions and cognitive function trajectories from 5 to 15 years of age: a population-based cohort study
Ariadna Pinar-Martí, Nicolas Ayala-Aldana, Sara Bernardo-Castro, Alexios Manidis +14 · October 2026
Researchers tracked 953 children from age five to fifteen. At birth, they measured three types of healthy fats, called omega-3s, in the babies' umbilical cord blood. They then tested the children's attention, short-term memory, and problem-solving over ten years. Children with higher levels of certain fats, like DHA and ALA, had lower overall inattentiveness. While some benefits faded as the kids grew, higher DHA levels were linked to steady improvements in problem-solving and attention through adolescence.
A newly built house gets a batch of paint and structural beams right at the start. Over ten rainy years, the fresh coat of paint looks bright immediately but wears away as the seasons pass, while the sturdy beams quietly keep the roof from sagging as the house settles. Here, the early nutrition in cord blood acts like those initial supplies: the fat called ALA gave children early boosts in attention that faded over time, while DHA acted like the durable frame, supporting steady cognitive development as the children grew into teenagers.
Diet during pregnancy directly shapes a child's brain development. Knowing which specific fats in umbilical cord blood relate to long-term memory, attention, and problem-solving helps clarify how prenatal nutrition shapes brain growth from early childhood all the way into the teenage years.
The abstract does not identify the specific biological mechanisms driving these trajectories, establish a direct causal link, or report findings for postnatal diet and environmental factors. It also reports results for EPA without showing significant cognitive trajectory associations.
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Omega-3 cord plasma proportions and cognitive function trajectories from 5 to 15 years of age: a population-based cohort study — Ariadna Pinar-Martí, Nicolas Ayala-Aldana, Sara Bernardo-Castro et al. — European Journal of Epidemiology — doi:10.1007/s10654-026-01461-8
Abstract licence: CC BY
Explanation generated by Synthesis from the abstract — it is not the original paper.