5. Whole Grains

Grains such as oats and brown rice are excellent sources of magnesium. One cup of cooked brown rice provides you with 86 mg of magnesium. And if you’re not a big fan of brown rice, one cup of cooked oats contains 63 mg of magnesium. Eating whole grains as part of a healthy diet has been shown to reduce inflammation and decrease heart disease risk.
4. Tuna

Fish, especially fatty fish, is incredibly nutritious. Many types of fish are high in magnesium, including tuna, salmon, mackerel and halibut. A six ounce tuna fillet packs 109 mg of magnesium provides an impressive 48 grams of high-quality protein. In addition, fish is also rich in potassium, selenium, B vitamins and omega-3 fatty acids. Eating fish once or twice per week has been linked to a decreased risk of several chronic diseases, particularly heart disease.