Amaranth is classified as a pseudocereal meaning that itâs 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. Amaranth May Lower Cholesterol Levels-Cholesterol is a fat-like substance found throughout the body. Too much cholesterol can build up in the blood and cause arteries to narrow. It Contains Antioxidants-Antioxidants are naturally occurring compounds that help protect against harmful free radicals in the body. One cup (246 grams) of cooked amaranth contains the following nutrients: Calories: 251 Protein: 9.3 grams Carbs: 46 grams Fat: 5.2 grams Manganese: 105% of the RDI Magnesium: 40% of the RDI Phosphorus: 36% of the RDI Iron: 29% of the RDI Selenium: 19% of the RDI Copper: 18% of the RDI