Spirulina algae, the food of astronauts. With a typical spiral shape, research is a complete diet as it is very rich in vegetable proteins, as well as being a source of numerous vitamins, such as B, K, E, D and A, of essential amino acids and mineral salts. Precisely because of the quantity of nutrients it can bring to those who suppose it, it has been established as "the food of the future". Appreciated, mostly, for its metabolic, tonic-invigorating and nutritional properties, spirulina algae has conquered the world of nutrition, so much so that it has been used in the dietary routine of astronauts of NASA and the European Space Agency. Spirulina algae helps strengthen the immune system and is able to re-mineralize the bones, therefore it is very useful in case of osteoporosis. It can be considered an excellent multivitamin supplement. It also has antioxidant, detoxifying and purifying properties.