A small study, published in the American Journal of Cardiology (2006; 97(8): 1127-1130) involved 18 male subjects who had a history of myocardial infarction and ejection fractions less than 40% and their response to omega-3 fatty acid supplementation. The subjects were divided into two groups; for four months one group was supplemented with omega-3 fatty acids (225 mg of EPA and 585 mg or DHA) and the second group acted as a control. Supplementation with the omega-3 fatty acids resulted in a reduction resting heart rate from 73 bpm to 68 bpm on average. The supplementation was also found to improve recovery after exercise.