Iron or zinc dialyzability obtained from a modified in vitro digestion procedure compare well with iron or zinc absorption from meals

► Iron and zinc dialyzability were measured with a newly proposed in vitro setup. ► Iron or zinc dialyzability from meals was correlated with published absorption data. ► Iron or zinc dialyzability correlated well with iron or zinc absorption. ► The new setup can be employed for the prediction of iron or zinc bioavailability.