Tip: There’s a reason the United Nations declared 2013 the International Year of Quinoa. This high-protein whole grain has a mild yet nutty flavor, contains a variety of health-protecting phytonutrients along with an impressive amount of magnesium, and cooks in less than half the time it takes to make brown rice. Quinoa is gluten free, making it a great option if you’re gluten intolerant or have celiac disease. The most widely available quinoa is a golden beige color, but red and black varieties are also available and worth a try for your high blood pressure diet.