Effects of fatty fish vs lean fish and all-cause mortality or survival.

Fatty fish: Data was provided by 3 cohorts (25, 27, 32). No associations were found between fatty fish consumption and all-cause mortality. Also, no association was found with risk of total major chronic disease risk (19).
Lean fish: Data was provided by 1 cohort (32). No association was found between lean fish consumption and all-cause mortality.

Conclusion: Little data was available. No evidence was found for an association between fatty fish, or lean fish consumption and all-cause mortality.