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Omega-3 fatty acids: evidence basis for treatment and future research in psychiatry. Freeman MP, Hibbeln JR, Wisner KL, Davis JM, Mischoulon D, Peet M, Keck PE Jr, Marangell LB, Richardson AJ, Lake J, Stoll AL. J Clin Psychiatry. 2006 Dec;67(12):1954-67. Review. Erratum in: J Clin Psychiatry. 2007 Feb;68(2):338. PMID: 17194275 Conclusions: The preponderance of epidemiologic and tissue compositional studies supports a protective effect of omega-3 EFA intake, particularly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), in mood disorders. Meta-analyses of randomized controlled trials demonstrate a statistically significant benefit in unipolar and bipolar depression (p=.02). The results were highly heterogeneous, indicating that it is important to examine the characteristics of each individual study to note the differences in design and execution. There is less evidence of benefit in schizophrenia. EPA and DHA appear to have negligible risks and some potential benefit in major depressive disorder and bipolar disorder, but results remain inconclusive in most areas of interest in psychiatry. Treatment recommendations and directions for future research are described. Health benefits of omega-3 EFA may be especially important in patients with psychiatric disorders, due to high prevalence rates of smoking and obesity and the metabolic side effects of some psychotropic medications.

Katri Räikkönen, Anu-Katriina Pesonen, Kati Heinonen, Jari Lahti, Niina Komsi, Johan G. Eriksson, Jonathan R. Seckl, Anna-Liisa Järvenpää, and Timo E. Strandberg Maternal Licorice Consumption and Detrimental Cognitive and Psychiatric Outcomes in Children American Journal of Epidemiology Advance Access published on October 4, 2009. doi:10.1093/aje/kwp272 Data are compatible with adverse fetal "programming" by overexposure to glucocorticoids and caution against excessive intake of licorice-containing foodstuffs during pregnancy.

Does nutritional intake differ between children with autism spectrum disorders and children with typical development? Herndon AC, Diguiseppi C, Johnson SL, Leiferman J, Reynolds A. J Autism Dev Disord. 2009 Feb;39(2):212-22. Epub 2008 Jul 4. PMID: 18600441 DOI: 10.1007/s10803-008-0606-2

Association between depressive symptoms and 25-hydroxyvitamin D in middle-aged and elderly Chinese. Pan A, Lu L, Franco OH, Yu Z, Li H, Lin X. J Affect Disord. 2009 Feb 25. [Epub ahead of print] PMID: 19249103 doi:10.1016/j.jad.2009.02.002    

Association between depressive symptoms and 25-hydroxyvitamin D in middle-aged and elderly Chinese. Pan A, Lu L, Franco OH, Yu Z, Li H, Lin X. J Affect Disord. 2009 Nov;118(1-3):240-3. Epub 2009 Feb 27. PMID: 19249103 doi:10.1016/j.jad.2009.02.002 Conclusions Depressive symptoms are not associated with 25(OH)D concentrations in middle-aged and elderly Chinese. Further prospective studies are required to determine whether they are correlated.

High tofu intake is associated with worse memory in elderly Indonesian men and women. Hogervorst E, Sadjimim T, Yesufu A, Kreager P, Rahardjo TB. Dement Geriatr Cogn Disord. 2008;26(1):50-7. Epub 2008 Jun 27. PMID: 18583909 DOI: 10.1159/000141484 CONCLUSION: The results for tofu consumption as a risk factor for low memory function may tie in with the Honolulu Asia Aging Study data. It is unclear whether these negative associations could be attributed to potential toxins or to its phytoestrogen levels. Estrogen (through which receptors phytoestrogens can exert effects) was found to increase dementia risk in women over 65 years of age. Tempe contains high levels of phytoestrogens, but (due to fermentation) also exhibits high folate levels which may exert protective effects. Future studies should validate these findings and investigate potential mechanisms.