Spirulina is a microscopic spiral shaped blue-green vegetable algae which grows in mineral-rich freshwater and saltwater sources. It contains the most remarkable concentration of nutrients known in any food, plant, grain or herb. It's the highest protein food- over 60% all digestible vegetable protein. It has the highest concentration of beta carotene, vitamin B-12, iron and trace minerals and the rare essential fatty acid GLA. Function: It is effective for reducing cancer radiotherapy and some side effects after chemotherapy. It can increase the level of white blood cells, can restore the body's immune function, and it can lower blood lipids, so it has a good preventive effect on arteriosclerosis. It also has certain benefits for diabetes. It can be used as a health care product to nourish the body for improving iron-deficiency anemia, malnutrition, or physical weakness after illness or surgery.