Preserved sardines in low salt olive oil combine the best that can be consumed to benefit cardiovascular health. Sardines, being a fatty fish, are recommended for their high Omega 3 content, a polyunsaturated fatty acid that protects the heart and helps reduce the risk of heart attack by controlling the levels of cholesterol present in the blood. Olive oil is, in turn, the preferred source of fat in the Mediterranean diet. The low salt content allows to control the blood pressure levels.