DHA & EPA Improve Cardio Response to Mental Stress
Exaggerated cardiovascular reactivity predicts cardiovascular morbidity and mortality. Some evidence suggests that omega-3 fatty acids improve cardiovascular function. The objective of this study was to examine the influence of an acute low dose of long-chain omega-3 fatty acids on young, healthy individuals.
Participants (n=34) were randomly assigned to either 21-days of omega-3 fatty acids (1.4g EPA and DHA) or matched placebo. Cardiovascular measurements were obtained in the laboratory during baseline and during a standard mental arithmetic task, where participants were instructed to engage in serial subtractions by 17s from a four-digit number and cardiovascular reactivity to the task was calculated.
Mean arterial pressure reactivity was significantly reduced by supplementation (F(1,32)=5. 12, p=.03, η(2)=.144) but not by placebo.
Supplementation of omega-3 fatty acids may reduce cardiovascular reactivity to stress.
Ginty AT, Conklin SM.
Preliminary evidence that acute long-chain omega-3 supplementation reduces cardiovascular reactivity to mental stress: A randomized and placebo controlled trial.
Department of Psychology and Neuroscience Program, Allegheny College, Meadville, PA, USA.