Wholefood Earth Has Officially Been Awarded A 5 Star Food Hygiene Rating, So you can feel confident in the quality of your food. The amaranth plant seeds have been valued for thousands of years, particularly by the indigenous cultures of Central America and Mexico. Amaranth leaves contain a wide range of minerals, including a high concentration of calcium. It Contains Lysine: Most grains like wheat are short on lysine, an amino acid, but that's not the case for amaranth. This makes amaranth a complete protein, because it contains all the essential amino acids. Certified Organic By Organic Farmers & Growers.