Update on Omega-3s and Cognition 1

We’ve added the following to Omega-3s Part 2—Research:

A cross-sectional study on women 65 years and older found no difference in cognition between the those in the upper one-third compared to those in the lowest one-third of EPA-plus-DHA percentage of fatty acids in red blood cells (1). However, the lowest one-third had an average EPA plus DHA percentage of 3.8 which is quite a bit higher than average vegan percentages tend to be, so it’s not clear if this finding would apply to vegans.


1. Ammann EM, Pottala JV, Harris WS, Espeland MA, Wallace R, Denburg NL, Carnahan RM, Robinson JG. ω-3 fatty acids and domain-specific cognitive aging: secondary analyses of data from WHISCA. Neurology. 2013 Oct 22;81(17):1484-91.

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One thought on “Update on Omega-3s and Cognition

  • JackNorrisRD Post author

    I should have noted that the typically low average vegan percentages of EPA and DHA mentioned in this post are measured in vegans who are normally not taking steps to increase their omega-3 intake. Vegans who increase their omega-3 intake, especially those who supplement with DHA or EPA, should have levels comparable to the subjects in this study.