NEW YORK (Reuters Health) – Sorry, Charlie, but fish oil supplements did not prevent atrial fibrillation in patients who had already experienced episodes of the heart rhythm malfunction, a new clinical trial has found. The study, published in the Journal of the American College of Cardiology, adds to a growing pool of disappointing evidence regarding the protective effects of omega-3 fatty acids on heart health. “The results for atrial fibrillation are important negative findings, answering key clinical and research questions,” said Dr. …