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Not all fats are made equal! Omega-3 is a type of fat, which your body needs badly. Sardines contain a lot of this kind of fats, and they are not pricey at all, like salmon (another well-known Omega-3 source). Omega-3 is known for its heart-healthy properties, such as lowering triglyceride levels, raise the „good”, high-density lipoprotein cholesterol levels and according to some medical studies, it can also lower the risk of deadly cardiac arrests.