Aquasource’s Klamath AFA blue-green algae, is the most beneficial of the “green foods”. It is absorbed perfectly by the human body and is a nourishing natural source of minerals, vitamins, amino acids, enzymes, antioxidants, beta carotene, chlorophyll, etc. click here for more info http://www.aquasourceproducts.co.uk/aquasource-afa-blue-green-algae.html .