Spirulina has been known for its positive effect on human health for a long time. The use of spirulina dates back as far as the ancient times. It refers to the dried biomass of an oxygenic photosynthetic bacterium found all over the world in fresh and marine waters.
This algae (Arthrospira platensis) has been used as a source of protein and vitamin supplement without any significant side-effects. Apart from up to 70% of protein, it also contains vitamins such as B12 and provitamin A (β-carotenes), and minerals like iron.
Spirulina is also known as superfood.