PMC

Serum long chain n-3 fatty acids by age (A) and race/ethnicity (B) in NHANES 2003–2004. Sum of eicosapentaenoic acid, docosahexaenoic acid and docosapentaenoic acid/total fatty acids. The solid line represents LCn-3 PUFA of 3.86%, the lower range of LCn-3 in the second tertile from Virtanen et al. [] that was associated with 53% lower risk of sudden cardiac death. The dashed line represents LCn-3 PUFA of 2.49% a concentration approximately equal to dietary recommendations [,,].