Chlorella pyrenoidosa, being among the oldest life forms on Earth, once helped to transform our planet's arid surface into a green environment. It is the first known form of vegetable life with a cell nucleus where new cells are formed every 18 - 20 hours. Therefore Chlorella is, in contrast to blue-green algae, a true plant, having cell-walls of cellulose. Chlorella's microscopic size (comparable to a human red blood cell) allows microfine filtering, thus guaranteeing an exceptionally pure, or "purified" harvest. 'Blue-green' algae are many times larger and thus cannot be harvested using this ideal process.Man has a remarkable capacity for protecting his body from negative external influences. However, an adequate reserve of nutrients must be available for these protection processes. Chlorella can provide these to us as it contains 19 amino acids - including all 8 essential (= vital) ones that the body has to take in from food, not being able to produce them on its own. Today's living habits can mostly not provide this supply - the result being a deficiency in nutrients, which can be balanced by consuming Chlorella. The high concentration of zinc and iron is remarkable, which is especially important to vegetarians. 3gm of Chlorella can furthermore cover the recommend daily doses of vitamin A, vitamin B, and of beta-carotene.Chlorella's most outstanding feature is its ability to assist the body in detoxifying. The body's own substance "Sporopollenene" in the median cell wall is able to bind harmful substances such as medicinal drug residues, food-borne 'heavy metals' or chemical pollutants proven to be contributors to many of today's common degenerative disease conditions. Another unique feature is Chlorella's high quantity of chlorophyll, the sun-storing agent of plants, being the only natural substance to transfer solar energy via food into the human body.