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Forest plot of meta‐analysis for type 2 diabetes risk and omega‐3 fatty acids supplementation based on omega‐3 composition in USA/European population. CI, confidence interval; DHA, docosahexaenoic acid; EPA, eicosapentaenoic acid; HPFS, Health Care Professionals Study; IWHS, Iowa Women's Health Study; NHS, Nurses' Health Study; NHS2, Nurses' Health Study II; RR, relative risk; WHS3, Women's Health Study.
