Hundreds of studies have been done on fish or fish oils
and their role in the prevention or treatment of heart disease.
A review in the British Medical Journal recommends fish or fish oil supplements to prevent heart attacks
, particularly in people with vascular
disease. How omega-3 fats reduce heart disease is not known, but they are known to lower blood triglycerides and blood pressure, prevent clotting, are anti-inflammatory and reduce abnormal heart rhythms