Eating fish or taking polyunsaturated fatty acid (PUFA) supplements can help prevent type 2 diabetes development among Asians, according to the results of a systematic review and meta-analysis. This is in contrast to Western populations, who showed no protective effect from PUFA consumption. The authors explain how the influences of genetics and gene-diet interactions on type 2 diabetes account for these population differences.
RESULT: Marine N-3 Polyunsaturated Fatty Acids Are Inversely Associated with Risk of Type 2 Diabetes in Asians: A Systematic Review and Meta-Analysis
PLoS One | Sep 11, 2012 (FREE FULL TEXT)
Another systematic review and meta-analysis found that study location (Asia vs. North America/Europe), mean body mass index, and duration of follow-up modified the association between fish/seafood and PUFA consumption and the risk of type 2 diabetes. But these authors say their overall pooled findings do not support either major harms or benefits of fish/seafood or PUFA consumption on the development of diabetes.
RESULT: Omega-3 fatty acids and incident type 2 diabetes: a systematic review and meta-analysis.
British Journal of Nutrition | Jun 1, 2012 (Free abstract. Full text $45)
