Algae health products. Assorted algae products from the German company maBitec. The powder seen at lower left is prepared from the Spirulina blue- green alga (cyanobacterium). Medicinal claims for this algal product range from high protein and vitamin content, to being an energy booster and being a cure for ailments from diabetes to depression. Bread and biscuit products are also seen, containing algae (green).