Iron BisglycinateThorne Iron Bisglycinate provides 25mg of elemental iron per capsule in a highly absorbable bisglycinate chelate form. This NSF Certified for Sport supplement uses Ferrochel ferrous bisglycinate chelate, a patented form of iron that is reacted with the amino acid glycine for enhanced absorption and tolerability. Iron bisglycinate is designed to be transported intact through the stomach and absorbed efficiently in the small intestine, which helps