Loading up on omega-3 fatty acids might not benefit people with atrial fibrillation, according to a new study from The Journal of the American Medical Association. A type of heart rhythm disorder, atrial fibrillation is typically marked by abnormally rapid heart rate. If left untreated, atrial fibrillation can lead to heart failure or stroke.
For the study, researchers assigned 663 people with atrial fibrillation to six months of treatment with either omega-3 supplements or a placebo. Results revealed that omega-3s failed to reduce the recurrence of atrial fibrillation.
Past research suggests that omega-3s may offer other heart-health benefits. For instance, some studies show that boosting intake of omega-3s may keep cholesterol in check, lower blood pressure, protect against atherosclerosis (hardening of the arteries), and reduce risk of heart attack and stroke.