Sardines provide 2 grams of heart-healthy omega-3s per 3 ounce serving, which is one of the highest levels of omega-3 and the lowest levels of mercury of any fish. They contain a great source of calcium and Vitamin D, so they support bone health, too.
Other than fortified products, there are few other food sources of Vitamin D. They may be packed in water, tomato juice or olive oil. Read the label to make sure you don’t exceed your daily limits for sodium and fat.