Daily's Spirulina (Tablets): Spirulina has a long history of safe use in humans. It was a valuable food source of protein and vitamin A for the ancient Aztecs in South America. Spirulina grows naturally in fresh water lakes of South America and is highly digestible without special processing. Spirulina also provides a wide range of bioactive compounds and is widely recognized as one of the most concentrated “Super Foods”. Two tablets provides Organic Spirulina 500 mg. (no excipients, Gluten Free, Soy Free, Vegan) 240 tablets per bottle.