1.Food-grade 100% pure spirulina powder 2.High Protein >62% 3.Very low heavy metal content ... vitamin E. Spirulina also contains many different minerals, including calcium, chromium, copper, iron, magnesium, manganese, phosphorus, selenium, sodium, zinc, and large ... of spirulina, which is a reason many people take spirulina powder daily, is that it is believed to reduce allergic reactions ...