Spirulina powder :- Spirulina is a type of blue-green algae that people can take as a dietary supplement. People consider spirulina a superfood due to its excellent nutritional content and health benefits. Spirulina is among the world's most popular supplements. It is loaded with various nutrients and antioxidants that may benefit your body and brain. Since the nutritional content of spirulina is very high it comes with immense health benefits for people who consume it.