Most potent and digestible protein source among green foods Boosts antioxidant activity Supports toxin removal Supports cardiovascular health An optimum source for antioxidant protection that will boost your immune system health and vitality, organic spirulina ranks as one of nature’s most powerful “superfoods.” At over 60% protein, spirulina is the most potent and digestible source of vegetarian protein! This family member of blue-green algae packs in a whole lot of antioxidant and phytonutrient nutrition along with high amounts of beta- carotene, essential amino acids, minerals, B vitamins, and chlorophyll. Spirulina is also rich in gamma-linolenic acid (GLA).