Table 3.
Heme iron absorption of heme only and heme plus cereal proteins (zein, gliadin, glutelin).
| Subjects | Heme Fe Absorption (%) | Ratios | |||||
|---|---|---|---|---|---|---|---|
| 55Heme (H) | 59Heme + zein (A) | 55Heme + gliadin (B) | 59Heme + glutelin (C) | A/H | B/H | C/H | |
| 1 | 12.2 | 13.2 | 11.4 | 9.3 | 1.08 | 0.93 | 0.77 |
| 2 | 9.6 | 7.5 | 7.7 | 6.0 | 0.78 | 0.80 | 0.62 |
| 3 | 4.2 | 4.1 | 5.8 | 5.2 | 0.97 | 1.37 | 1.22 |
| 4 | 1.6 | 1.6 | 4.0 | 0.9 | 0.99 | 2.41 | 0.53 |
| 5 | 7.8 | 9.6 | 7.5 | 3.9 | 1.24 | 0.96 | 0.50 |
| 6 | 11.5 | 16.8 | 14.1 | 14.2 | 1.46 | 1.23 | 1.24 |
| 7 | 6.8 | 9.1 | 7.5 | 4.6 | 1.35 | 1.10 | 0.68 |
| 8 | 3.8 | 5.1 | 5.6 | 5.1 | 1.37 | 1.50 | 1.37 |
| 9 | 8.5 | 7.4 | 12.1 | 8.2 | 0.87 | 1.42 | 0.96 |
| 10 | 3.7 | 3.6 | 3.2 | 3.4 | 0.96 | 0.85 | 0.91 |
| 11 | 12.7 | 15.2 | 8.7 | 10.9 | 1.20 | 0.68 | 0.86 |
| 12 | 8.2 | 9.5 | 12.8 | 10.1 | 1.16 | 1.56 | 1.23 |
| 13 | 2.3 | 3.5 | 4.3 | 4.0 | 1.52 | 1.88 | 1.74 |
| 14 | 6.0 | 7.7 | 8.2 | 7.1 | 1.28 | 1.37 | 1.18 |
| 15 | 9.7 | 14.1 | 10.6 | 12.8 | 1.46 | 1.10 | 1.32 |
| Mean a | 6.2 | 7.2 | 7.5 | 5.9 | 1.16 | 1.21 | 0.95 |
| SD a | 3.3–11.6 | 3.7–13.8 | 4.8–11.8 | 2.9–11.8 | 0.94–1.42 | 0.86–1.70 | 0.65–1.38 |
| SS b | N.S | N.S | N.S | ||||
| r c | −0.76 | −0.73 | −0.68 | −0.60 | |||
a Geometric mean and range ±1 SD. b Statistical significance (SS) calculated with respect to heme absorption. N.S, non significant (p < 0.05). c Pearson correlation coefficients between serum ferritin and Fe absorption.