Spirulina spirulina plankton is one of nature39s richest sources of plant pigments such as chlorophyll carotenoids and phycocyanin and highly digestible protein typically more than 55 as well as providing vitamins and minerals fatty acids and other compounds vital to life such as the powerful antioxidant enzyme superoxide dismutase sod green barley grass barley grass contains a wide array of important health giving compounds including chlorophyll and carotenoid pigme