FIGURE 3.

Fractional iron absorption (%) (A, C) and total iron absorption (mg/d) (B, D) from regular and iron-biofortified OFSP test meals in Malawian women (A, B; n = 24) and from regular YFP and iron-biofortified PFP test meals in Peruvian women (C, D; n = 35). Isotopic administration in both studies: ⁵⁷Fe for the regular test meal and ⁵⁸Fe for the iron-biofortified test meal. The horizontal lines represent geometric means (95% CIs). OFSP, orange-fleshed sweetpotato; PFP, purple-fleshed potato; YFP, yellow-fleshed potato.