I will attach an abstract, but this is one of a dozen reasons we should be taking fish oil. I've been one called DHA Max by Jarrow Products for a couple of months and am pleased.

1: Ann Neurol. 2006 Feb;59(2):282-8.

Docosahexaenoic acid reduces levodopa-induced dyskinesias in
1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine monkeys.

Samadi P, Gregoire L, Rouillard C, Bedard PJ, Di Paolo T, Levesque D.

Centre de recherche en Neurosciences, Centre Hospitalier Universitaire de Quebec
(CHUQ), Ste-Foy, Quebec, Canada.

OBJECTIVE: The objective of the present study was to investigate the effect of
docosahexaenoic acid (DHA), a polyunsaturated fatty acid (omega-3), on
levodopa-induced dyskinesias (LIDs) in parkinsonian
1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated monkeys. METHODS: We
explored the effect of DHA in two paradigms. First, a group of MPTP monkeys was
primed with levodopa for several months before introducing DHA. A second group
of MPTP monkeys (de novo) was exposed to DHA before levodopa therapy. RESULTS:
DHA administration reduced LIDs in both paradigms without alteration of the
anti-parkinsonian effect of levodopa indicating that DHA can reduce the severity
or delay the development of LIDs in a nonhuman primate model of Parkinson's
disease. INTERPRETATION: These results suggest that DHA can reduce the severity
or delay the development of LIDs in a nonhuman primate model of Parkinson's
disease. DHA may represent a new approach to improve the quality of life of
Parkinson's disease patients.

PMID: 16437566 [PubMed - indexed for MEDLINE]