Spirulina is a type of blue green algae of a genus Arthrospira. Growing in warm and alkaline fresh water, Spirulina is essentially a single-celled cyanobacterium having a spiral and twisted strand physical form, according to its name. From the Latin word for little spiral or helix, Spirulina is a well-known health supplement for health buffs. It is now being dubbed as a “superfood” since it contains several essential vitamins like proteins and vitamins for the well being of the body. Even so, despite its gaining popularity, most individuals still ask themselves, “what is Spirulina?” To solve this question, this short article will give you a broad review of the blue green algae plus a quick summary of its old uses and current physical health benefits. Based on reports by reliable experts, Spirulina was found to have been part of the diet of the Kanembu people in Chad in Africa. Since 9th century, the Kanembu folks harvested these blue green algae and utilized them to produce dihé, or a hardened sun-dried cake. They would grind these cakes into smaller pieces and would merge these parts with vegetables for example tomatoes and pepper. Sometimes, fish and meat would also be combined with the cake and they would sell it to the local area. The Kanembu found Spirulina from the local ponds around Lake Chad, which contains high concentrations of these algae, giving its water a bluish green color. Because of its amount, the Kanembu used Spirulina up to the level where 70% of their diet contains the blue green “superfood.” In addition to Chad, Spirulina has been found to have been part of the diet of the Aztecs until the 16th century. Their understanding of what Spirulina is also the same with the Kanembu citizens as they also made cakes from the blue green algae. The Aztecs and other Mesoamerican tribes sourced the Spirulina from Lake Texcoco and gave the name techuitlatl. On the other hand, this algae diet was found to have stopped after the 16th century. Historians assume that this was mainly due to the Spanish conquest and rapid urbanization. For these early civilizations, there seemed countless Spirulina Benefit. It was not until the 1970s that a French business began generating Spirulina in business amounts. Right after discovering what Spirulina is, American and Japanese organizations followed quickly and started making Spirulina in huge amounts. Right now, the largest providers of Spirulina are located in the United States, Chile, Taiwan, Burma and Thailand, to name a few. Due to the components of vitamins and nutrients within the blue green algae, producers are reducing the cyanobacterium into edible forms such as capsules and tablets for easy and convenient intake. Most of the physical health benefits that can be obtained from consuming Spirulina are these: reducing high blood pressure, protecting against cancer, fighting autoimmune illnesses as well as serving a regular source of rich amino acids or protein. On top of that, Spirulina is also identified to be a very good source for Vitamin B1, Vitamin E and C and even folic acid. In fact, according to these beneficial benefits, Spirulina deserves its moniker of superfood. Knowing these products, like the Kanembu and Aztec citizens, answering the problem “what is Spirulina Benefit?” will now be a simple task.