ATHENS, Greece, June 25 (UPI) -- Eating too little or too much fish may increase the risk of atrial fibrillation, or irregular heartbeat, Danish researchers say.
Dr. Thomas Rix and colleagues from Aalborg University Hospital in Denmark found a U-shaped association between consumption of marine n-3 polyunsaturated fatty acids -- n-3 PUFA -- and the risk of developing an irregular heartbeat, with people who have both low and high intakes found to suffer more from atrial fibrillation than those with median intakes.