It has been known for many years that fish oil has protective effects on the body. Some of the specific actions include lowering triglycerides and preventing thrombosis (or clots which can lead to heart attacks) and cardiac arrhythmias. Fish oil also decreases cholesterol accumulation in the arterial wall, inhibits inflammation and decreases platelet aggregation. Fish oil can be found in a variety of foods including salmon, trout, herring and also in flax seed, walnuts and other nuts and grains. Fish oil in an easy and natural way to increase cardiovascular health, especially in patients with risk factors including obesity, high blood pressure and high cholesterol and triglycerides.