Quiz: What are amaranth, emmer and teff? No, they’re not celebrity baby names. Along with millet, quinoa and rye, they’re part of a class of food commonly referred to as ancient grains. Although they represent some of the oldest plants consumed by humans, for many Americans they’re a new way to eat. ¶ While many are true cereal grains, several, such as amaranth, buckwheat and quinoa, actually originate from broadleaf plants. But they offer the same health benefits, such as helping to prevent cancer, heart disease and high blood pressure. And when eaten as a whole grain, most are high in fiber. ¶ According to the U.S. Department of Agriculture’s dietary guidelines, at least half of all grains eaten each day should be whole (that is, intact, ground, cracked or flaked). Most of us limit our grains to barley, corn, oats, rice and wheat, but you can add variety to your diet by including some ancient grains. And doing so could make it easier to eat the recommended three ounces of whole grains daily. Additionally, several varieties are sources of high-quality protein. ¶ Here are eight of the more widely available ancient grains, often sold in health-food stores, online and sometimes at your local grocery store. Most can be found in flour or whole-grain form, as well as in bread, pasta, crackers, cereals and other baked goods.