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

Nutrition & Metabolism

Table 7 Effect size of acute and chronic hepatic iron levels

Study	Treatment	Effect size (d)	Lower CI (95%)	Upper CI (95%)
[70]	Acute gavage	0.17	−0.96	1.31
	Chronic Gavage	−0.20	−1.33	0.94
	Acute Powder	−0.22	−1.36	0.91
	Chronic Powder	−0.40	−1.55	0.74
[47]	5% tea challenge	−0.34	−1.48	0.80
	5% tea chronic	2.87^a	1.26	4.48
	5% tea + gelatin challenge	0.50	−0.64	1.65
	5% tea + gelatin chronic	2.39^a	0.91	3.87
Total (CI % hepatic iron)		0.57	−0.64	1.84
Total (CI % chronic hepatic iron)		1.16	−0.18	2.51
Total (CI % acute hepatic iron)		0.03	−1.11	1.17

ISSN: 1743-7075