Yes! Sardines naturally contain omega-3 fatty acids, like Salmon. In fact, they have some of the highest concentration of this heart-healthy nutrient of any fish. Best of all, the amount of mercury in sardines is low because they primarily eat zooplankton and phytoplankton. Per the Cleveland Clinic, they are even safe for pregnant women to eat.
These fish are also a natural source of Vitamin D and Calcium. Calcium is critical for bone strength while Vitamin D helps to control the calcium and phosphate level in your body.
Despite their benefits, moderation is important with sardines. The smoked and salted varieties can be high in sodium content, which can negatively impact your blood pressure levels or have other negative effects.