Relative risk of type 2 diabetes associated with estimated dietary EPA+DHA in 16 prospective cohorts including 440,873 participants and 21,512 cases of incident diabetes. Within-study relative risks and 95% CI’s were quantified using generalized least squares trend estimation, and study-specific results were pooled using random effect meta-analysis. Exclusion of 4 studies for which the EPA+DHA intake was imputed from dietary fish/seafood (37; 39; 42), did not appreciably alter the results (per 250mg/day, RR=1.06, 95% CI=0.99, 1.14, P=0.08).