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With regards to phytin, I contacted the Bulgarian Pharmaceutical Group who say "Phytin belongs to the group of the organic phosphates and represents a mixture of calcium and magnesium salts of the phytinic acid. Phytin is a product possessing general strengthening and tonic action on the organism. It improves the exchange of substances, stimulates hematopoiesis (formation of the red blood cells by the bone marrow). It stimulates the activity of the nervous system, particularly in states associated with phosphorus deficiency in the body. Phytin improves the building of the bone tissue. Phytin is a natural antioxidant of vegetable origin. The phytinic acid forms common chelate complexes with the iron ions, which inhibit iron catalysed cellular oxidative processes, and also inhibit lipid peroxidation and the associated damage of the intestinal and the hepatic cells. The phytinic acid forms insoluble chelate complexes with the calcium ions and binds the existing free radicals, the base for its antioxidant activity". They have also promised to investigate the iron inhibition matter, and get back to me!