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Average retail price per pound: $1.47 frozen and $2.47 fresh

Other than the great taste and few calories, turnips have a lot of glucosinolates, which are compounds with antioxidant properties. Turnips are also high in potassium. The root has been shown to have multiple heart benefits, such as lowering blood pressure, hindering platelet aggregation, and improving endothelial dysfunction, according to studies.