Spirulina (dietary supplement)
Spirulina tablets Spirulina is a cyanobacterium that can be consumed by humans and other animals and is made primarily from two species of cyanobacteria: Arthrospira platensis and Arthrospira maxima. Arthrospira is cultivated worldwide; used as a dietary supplement as well as a whole food; and is available in tablet, flake and powder form. It is also used as a feed supplement in the aquaculture, aquarium and poultry industries. Spirulina thives at a pH around 8.5 + , which will get more alkaline, and a temperature around 86 deg. F. Spirulina was a food source for the Aztecs and other Mesoamericans until the 16th century; the harvest from Lake Texcoco and subsequent sale as cakes were described by one of Cortés' soldiers. The Aztecs called it "tecuitlatl". Spirulina has also been traditionally harvested in Chad. Dried spirulina contains about 60% (51–71%) protein. The U.S. Spirulina is not considered to be a reliable source of Vitamin B12.