Abstract
Autism is a behaviorally defined neurodevelopmental disorder characterized by social and communication deficits, accompanied by repetitive and stereotyped behaviors. In general, it is believed that autism is a complex multifactorial disorder and has no single cause. Accordingly, growing evidence supports the idea that this condition may be caused by several factors, including multigenic interactions and complex environmental contributions. Preliminary data have suggested that autism is associated with a reduced intake or cellular abundance of omega-3 polyunsaturated fatty acids (PUFA). This chapter presents an overview of the existing clinical studies and case reports of omega-3 PUFA supplementation in autism. One placebo-controlled trial examining 13 autistic children treated with 1.5 g of omega-3 fatty acids or placebo for 6 weeks failed to demonstrate significant improvement in hyperactivity and stereotypy scores. Three uncontrolled studies and one case report suggested some improvements in the core features of ASD, whereas another uncontrolled study failed to confirm these findings. Side effects were generally mild or absent. While it is not currently possible to recommend omega-3 PUFA as either a mono- or adjunctive-therapy in autism, the available evidence is strong enough to justify continued study. Further work is required to determine whether autistic patients showing reduced levels of PUFA might specifically benefit from omega-3 supplementation.
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Abbreviations
- AA:
-
Arachidonic acid
- ABC:
-
Aberrant behavior checklist
- ABLLS:
-
Assessment of basic language and learning skills
- ADI-R:
-
Autism diagnostic interview-revised
- ALA:
-
Alpha-linolenic acid
- ASD:
-
Autistic spectrum disorder
- ASP:
-
Asperger syndrome
- CARS:
-
Childhood autism rating scale
- DHA:
-
Docosahexaenoic acid
- DSM-IV:
-
Diagnostic and statistical manual of mental disorders
- EPA:
-
Eicosapentaenoic acid
- GLA:
-
Gamma-linolenic acid
- PDD:
-
Pervasive developmental disorders
- PUFA:
-
Polyunsaturated fatty acids
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Politi, P., Cena, H., Emanuele, E. (2011). Dietary Supplementation of Omega-3 Polyunsaturated Fatty Acids in Autism. In: Preedy, V., Watson, R., Martin, C. (eds) Handbook of Behavior, Food and Nutrition. Springer, New York, NY. https://doi.org/10.1007/978-0-387-92271-3_116
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