Amaranth is a versatile and nutritious group of grains that has been cultivated for thousands of years. Amaranth is a group of more than 60 different species of grains that have been cultivated for about 8,000 years. These grains were once considered a staple food in the Inca, Maya and Aztec civilizations. Amaranth is classified as a pseudocereal, meaning that itâ??s not technically a cereal grain like wheat or oats, but it shares a comparable set of nutrients and is used in similar ways. Its earthy, nutty flavor works well in a variety of dishes . Besides being incredibly versatile, this nutritious grain is naturally gluten-free and rich in protein, fiber, micronutrients and antioxidants.