USDA Organic Daily Wellness Nutrient-Rich Botanical Superfood Dietary Supplement Certified Organic by Oregon Tilth Spirulina One of the simplest forms of life on the planet. These blue-green algae are a storehouse of nutrients. Spirulina is a vegetarian source of vitamins, minerals, chlorophyll and essential fatty acids. Gaia herbs tests each batch for purity and potency to insure absolute safety and validated wholefood nutrition.