For centuries, civilizations have understood the value of green food such as Spirulina and Chlorella, and cereal grasses such as Wheat and Barley. Now, in the early twenty-first century, scientists are rediscovering the benefits of these Green Super Foods, which respectively contain the highest levels of easily digestible vegetable proteins, amino acids, beta carotene, mixed carotenoids, vitamin B-12, iron, trace minerals, the essential fatty acids GLA and linoleic acid, phycocyanin, polysaccharides, chlorophyll and sulfolipids.