Spirulina is a blue-green algae that is supposed to have some amazing health effects when you eat it. It is sometimes referred to as Superfood when sold in a dried form. This article describes some of the potential benefits but also contains a word of caution about the hype:
Spirulina is a type of blue-green algae that is rich in protein, vitamins, minerals, and carotenoids (a type of antioxidant that can help protect cells from damage). It contains nutrients, including B complex vitamins, beta-carotene, vitamin E, manganese, zinc, copper, iron, selenium, and gamma linolenic acid (an essential fatty acid)….
Test tube and animal studies suggest spirulina may boost the immune system, help protect against allergic reactions, and have antiviral and anticancer properties. However, there is no proof that spirulina has these, or any, benefits in humans. More research is needed to fully understand how or whether spirulina benefits people.
The interesting thing about Spirulina is that it is easy to grow it at home, for example in an aquarium. All you need is a a hydroponic growing medium, some live spirulina starter and a few pieces of common aquarium equipment like a heater and a bubbler.
This video shows you how to harvest grow Spirulina from an aquarium: