Supplementation with high-dose docosahexaenoic acid increases the Omega-3 Index more than high-dose eicosapentaenoic acid.

Allaire J, Harris W, Vors C, et al. PLEFA. 2017.


The increase in omega-3 index was greater with supplemental DHA than EPA. The omega-3 index has been inversely associated with the risk of coronary heart disease and coronary mortality.