Monsen ER, Hallberg L, Layrisse M, Hegsted DM, Cook JD, Mertz W, et al.. Estimation of available dietary iron. The American Journal of Clinical Nutrition [Internet]. 1978;31(1):134 - 141. http://ajcn.nutrition.org/content/31/1/134.abstractN2 - Dietary iron requirements are dependent on the amount and availability of food iron ingested. On the basis of recent studies of food iron absorption employing extrinsic tag techniques, the availabili