Sardine oil is rich in omega-3 fatty acids, particularly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). These fatty acids play a crucial role in supporting heart health by reducing inflammation and improving cholesterol levels. Omega-3s also contribute to brain function and may have cognitive benefits. Additionally, sardine oil contains vitamin D, which is essential for bone health and immune system function. The anti-inflammatory properties of omega-3s found in sardine oil may also benefit joint health.