Does Omega-3 DHA During Pregnancy Boost Baby’s Brain Development? A Look at the Evidence
This analysis combined results from 21 randomized controlled trials conducted between 2001 and 2023, examining whether taking DHA (an omega-3 fatty acid) during pregnancy affects a baby’s later development and physical growth.
Researchers looked at neurodevelopmental outcomes such as attention, motor skills, intelligence, language, executive function, and short-term memory. Across 19 studies included in the pooled analysis, DHA supplementation during pregnancy showed no significant advantage in any of these developmental areas compared to not supplementing.
For physical growth measures, the picture was mixed. Prenatal DHA supplementation was associated with a modest increase in birth weight (about 72.5 grams on average), but showed no meaningful effect on head circumference, gestational age, or birth length.
What this means for you
Based on this pooled analysis of existing trials, taking DHA during pregnancy was linked to a small increase in birth weight, but the current evidence does not show a clear benefit for babies’ later attention, memory, language, or intelligence. As the researchers note, some subgroups of people may respond differently, and this is an area for future study.
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Start the ALP ProtocolThis summary is for educational purposes only and is not medical advice. Always talk to your healthcare provider before making changes to your supplement routine.