FIA and TIA from the test meal
The FIA (geometric mean; 95% CI) of the biofortified potato clone and the nonbiofortified potato variety were 12.1% (10.3%–14.2%) and 16.6% (14.0%–19.6%), respectively (Fractional iron absorbed (%) (A) and total iron absorbed per meal (mg) (B) of nonbiofortified and iron-biofortified potatoes. Isotopic administration: 