E.R. Morris

TL;DR: Two hundred sixty-six free-living human volunteers, 21-64 y old, were trained by dietitians to record daily their food intake and fed diets of conventional foods adjusted in amounts to maintain their body weight for greater than or equal to 45 d.

TL;DR: The data indicated that high dietary calcium per se reduced zinc bioavailability, and the maximum phytate/zinc molar ratio that did not depress growth of young rats was greatly influenced by dietary calcium level and somewhat influenced by total dietary zinc concentration.

TL;DR: Reduction of Fe(III) within the lumen or at the cell surface is required for transfer of this essential micronutrient across the intestinal brush border surface to examine the importance of reduction of nonheme ferric iron for transport across the brushborder surface.

TL;DR: A modified procedure of the Oberleas method was developed that appears to free the ferric phytate precipitate of inorganic phosphate and its efficiency are reported in this communication.

TL;DR: It is suggested that phytate might increase the risk of impaired zinc bioavailability for vegetarians consuming a relatively high level of calcium, and if the data from animal studies are applicable to human diets, the present study suggests thatphytate has little influence on zincBioavailability of most American diets.