Spirulina is freshwater blue-green algae named after it's microscopic spiral shape that is a true superfood. The nutrient-dense algae can help boost your immune system, regulate cholesterol and blood pressure. It's deep green color comes from chlorophyll which provides vitamin A, B vitamins and iron. It also contains essential amino acids is high in protein. It's also more easily digestible than other rich protein sources such as red meat and soy.