Omega-3 fatty acids support cardiovascular health by lowering triglyceride levels, reducing blood pressure, and decreasing the risk of heart disease. They are known to improve endothelial function, which enhances blood vessel health, and may reduce the risk of arrhythmias. Additionally, omega-3s have anti-inflammatory properties that help protect against chronic inflammatory conditions linked to heart disease. They can be found in fish such as salmon and mackerel, as well as in flaxseeds and walnuts, making incorporating these into your diet beneficial for heart health.