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. 2021 Jan 30;5(2):nzab004. doi: 10.1093/cdn/nzab004

TABLE 3.

Mean iron (Fe) and zinc (Zn) concentration, ng ferritin/mg protein, relative iron bioavailability, and phytic acid concentration of 5 cooked freeze-dried lentil samples (n = 3) from each of the 3 milled lentil product types (red football, red split, and yellow split)1

Fortified and unfortified cooked lentil samples Mean (95% CI) RFeB% increase/decrease compared with control
Sample no. Fe added from NaFeEDTA, mg Zn added from ZnSO4.H2O, mg Fe, mg/100 g of lentils Zn, mg/100 g of lentils ng Ferritin/mg protein RFeB% Phytic acid, mean (95% CI), mg/g
Red football
 12 Unfortified control 7.6 (0.6)a 4.3 (0.2)a 10.8 (1.4)b 91.3 0.0 0.63 (0.08)a,b
 23 0.0 12 7.7 (0.3)a 15.5 (0.3)e 6.1 (0.5)a 51.7 -43.4 0.62 (0.09)b
 34 24 0.0 27.5 (0.3)b 4.5 (0.1)b 26.0 (2.4)c 220.1 141.1 0.55 (0.01)c
 45 16 8 27.1 (1.9)b 13.9 (0.2)c 27.6 (9.4)d 233.1 155.4 0.51 (0.11)d
 55 24 12 28.6 (0.3)c 15.1 (0.2)d 36.4 (4.0)e 307.3 236.6 0.53 (0.03)d
Red split
 12 Unfortified control 7.3 (0.2)a 4.3 (0.1)a 7.9 (2.1)a 113.6 0.0 0.83 (0.15)a
 23 0.0 12 7.4 (0.2)a 15.2 (0.2)d 8.2 (3.7)a 116.1 2.1 0.80 (0.14)b
 34 24 0.0 31.1 (1.5)c 4.4 (0.1)a 28.9 (1.8)b 411.1 261.7 0.71 (0.02)c
 45 16 8 28.0 (2.0)b 13.4 (0.6)b 32.3 (7.0)b,c 459.4 304.3 0.73 (0.07)c
 55 24 12 31.6 (1.2)c 14.6 (0.1)c 36.7 (10.1)c 521.8 359.2 0.71 (0.18)c
Yellow split
 12 Unfortified control 5.9 (0.3)a 3.9 (0.1)a 19.9 (7.5)a 122.0 0.00 0.96 (0.16)a
 23 0.0 12 6.1 (0.3)a 13.9 (0.3)d 12.8 (8.8)a 78.1 -36.00 0.92 (0.04)b
 34 24 0.0 21.6 (0.5)b 3.9 (0.1)a 40.1 (12.1)b 245.5 101.16 0.87 (0.19)c
 45 16 8 29.9 (1.1)c 12.1 (0.4)b 70.0 (31.7)c 428.9 251.47 0.79 (0.11)d
 55 24 12 32.9 (1.0)d 13.2 (0.3)c 84.8 (19.0)d 519.5 325.67 0.79 (0.11)d
1

Means with different superscript letters within columns are significantly different, < 0.0001. RFeB%, relative iron bioavailability.

2

Unfortified control lentils polished with 0.5% canola oil.

3

Zn-fortified lentils with ZnSO4.H2O.

4

Fe-fortified lentils with NaFeEDTA.

5

Dual-fortified lentils with NaFeEDTA and ZnSO4.H2O.