Omega-3s Fail to Fight Atrial Fibrillation

Loading up on omega-3 fatty acids[1] might not benefit people with atrial fibrillation, according to a new study[2] 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[3].

For the study, researchers assigned 663 people with atrial fibrillation to six months of treatment with either omega-3 supplements or a placebo[4]. 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[5] in check, lower blood pressure[6], protect against atherosclerosis[7] (hardening of the arteries), and reduce risk of heart attack and stroke.


  1. ^ omega-3 fatty acids (
  2. ^ study (
  3. ^ stroke (
  4. ^ placebo (
  5. ^ cholesterol (
  6. ^ blood pressure (
  7. ^ atherosclerosis (

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