Diet-derived luminal factors have a major influence on zinc available for uptake across the apical membrane of enterocytes. Malabsorption and possibly intestinal microbiota limit this zinc availability. The transporter ZIP4 is expressed along the entire ...
Unlike iron, zinc absorption is influenced by dietary zinc intake, not zinc status. As dietary zinc increases, the total amount of absorbed zinc increases while the percent absorbed declines. The gastrointestinal tract maintains whole-body zinc ...