The blue green alga Spirulina is arguably nature's most powerful green food. With over 60% protein content, Spirulina is the highest, most digestible source of "complete" protein. Spirulina is also the source of several important phytonutrients like Carotenoids; Essential Fatty Acids like Gamma Linolenic Acid; trace minerals such as Iron, Magnesium, Calcium; Sulpholipids and the antioxidant enzyme Superoxide dismutase (SOD) all of which are in a bio-available form. This ability of being easily digested and assimilated is due to Spirulina's lack of a cellulose cell wall. Most remarkably Spirulina is the highest source for phytopigments like Phycocyanin, Beta-carotene, Zeaxanthin and other plant pigments that define green foods like Chlorophyll.