Bio-Strath AG, Zurich, Switzerland has been founded in 1961 by Fred Pestalozzi as a family business with the goal to produce herbal yeast food supplements, Bio-Strath herbal yeast food supplements are the high-quality products. Bio-Strath success in over 50 countries of the world today is in fact the result of accurate, scientifically based work. Bio-Strath has Production range of food supplements, herbal remedies and feed supplements for pets and horses. is proud to carry the entire range of this fine brand.