Skip to main content

Table 8 Effect size of acute and chronic % non-heme iron absorption

From: Salivary proline-rich protein may reduce tannin-iron chelation: a systematic narrative review

Study Treatment Effect size (d) Lower CI (95%) Upper CI (95%)
[70] Acute gavage 0.79 −0.38 1.97
Chronic Gavage 0.14 −0.99 1.27
Acute Oral 1.37a 0.11 2.62
Chronic Oral −0.66 −1.81 0.51
[37] 5% tea challenge −3.99a −5.94 −2.03
5% tea chronic −1.62a −2.92 −0.31
5% tea + gelatin challenge −4.11a −6.1 −2.11
5% tea + gelatin chronic −2.29a −3.74 −0.83
Total (CI % absorption) −1.30 −2.73 0.13
Total (CI % absorption chronic consumers) −1.11 −2.37 0.16
Total (CI % absorption acute consumers) −1.61 −3.08 0.11
  1. a p < 0.05 (95% CI)