Marine, not plant EPA/DHA, effective for heart disease prevention

According to a study in American Journal of Clinical Nutrition, omega-3 fatty acids derived from fish (EPA/DHA) may be helpful to women in reducing the risk of heart disease by 38%. Omega-3 fatty acids from plant sources (ALA), however, are of no assistance. The reason this outcome was found is because ALA must be converted to EPA and DHA. Given the fact that the conversion rate is low to start with, at least 25% of the human population cannot convert ALA to EPA/DHA. Vegetarians and vegans should especially take note of this finding.