Childrens' learning and behaviour and the association with cheek cell polyunsaturated fatty acid levels.
In typical elementary kids, higher cheek-cell omega-3 links to slightly better parent/teacher behavior ratings but does nothing for academics.
01Research in Context
What this study did
Researchers measured omega-3 fats in cheek cells of typical elementary students. They asked parents and teachers to rate each child's behavior and attention. The team also gave the kids standard academic and thinking-skills tests.
What they found
Kids with more omega-3 in their cells got slightly better behavior scores from adults. The link was small and did not show up on any math, reading, or IQ tests. In short, higher omega-3 tracked with fewer complaints, not better grades.
How this fits with other research
Portillo-Reyes et al. (2014) extends this idea. They gave omega-3 pills to malnourished 8- to 12-year-olds for three months. Over 70 % of those kids showed clear gains in attention and processing speed, showing the nutrient can matter when diet is poor.
Mazahery et al. (2019) conceptually replicate the link in autistic 3- to 8-year-olds. Daily omega-3 produced only scattered, weak gains in social awareness, matching the small effect seen here.
Veenman et al. (2018) meta-analysis looked at classroom behavior programs, not fish oil. Their review of 19 RCTs shows teacher-rated behavior can improve, but only when schools use structured behavioral strategies, not supplements.
Why it matters
For BCBAs, this means omega-3 status is not a useful screening tool for academic risk in typical clients. Small behavior gains from diet alone are unlikely to meet clinical significance. Keep your focus on evidence-based classroom and contingency strategies if you want measurable behavioral change.
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02At a glance
03Original abstract
Increasing interest in the role of omega-3 fatty acids in relation to neurodevelopmental disorders (e.g. ADHD, dyslexia, autism) has occurred as a consequence of some international studies highlighting this link. In particular, some studies have shown that children with ADHD may have lower concentrations of polyunsaturated fatty acids (PUFAs), particularly omega-3, in their red blood cells and plasma, and that supplementation with omega-3 fatty acids may alleviate behavioural symptoms in this population. However, in order to compare levels it seems appropriate to establish fatty acid levels in a mainstream school aged population and if levels relate to learning and behaviour. To date no study has established this. For this study, cheek cell samples from 411 typically developing school children were collected and analysed for PUFA content, in order to establish the range in this population. In addition, measures of general classroom attention and behaviour were assessed in these children by teachers and parents. Cognitive performance tests were also administered in order to explore whether an association between behaviour and/or cognitive performance and PUFA levels exists. Relationships between PUFA levels and socio-economic status were also explored. Measures of reading, spelling and intelligence did not show any association with PUFA levels, but some associations were noted with the level of omega-3 fatty acids and teacher and parental reports of behaviour, with some evidence that higher omega-3 levels were associated with decreased levels of inattention, hyperactivity, emotional and conduct difficulties and increased levels of prosocial behaviour. These findings are discussed in relation to previous findings from omega-3 supplementation studies with children.
Research in developmental disabilities, 2010 · doi:10.1016/j.ridd.2010.01.015