In nature, phytic acid is the primary storage form of phosphorus in many plant tissues, especially seeds and grains. However, many animals, including poultry and swine, lack the enzyme needed to digest phytic acid. Consequently, the phosphorus in phytic acid is not bioavailable to them. Microbial phytase supplements are added to animal feed to break down phytic acid, making phosphorus available for absorption and reducing the need for inorganic phosphorus supplements.
