Investigation of Some Metals in Leaves and Leaf Extracts of Lippia javanica: Its Daily Intake

Table 5

Recommended dietary allowances (RDA, mg/day/person) and percent contribution of estimated dietary intake of metal to RDA by consumption of leaf brew and infusion extracts of L. javanica (2 g, 5 minutes) collected from seven sampling sites of Marondera, Zimbabwe.

Metal	Mean EDI/RDA percent for life stage group (years) for tea brew								EDI/RDA percent for life stage group (years) for tea infusion
	Children		Males		Females		Pregnancy	Lactation	Children		Males		Females		Pregnancy	Lactation
	1–3	4–8	19–50	>51	19–50	1–3	4–8	19–50	1–3	4–8	19–50	>51	19–50	>51	19–50	19–50
Cr	2.72	2.00	0.86	1.00	1.20	1.50	1.00	0.67	4.55	3.33	1.43	1.67	2.00	2.5	1.67	1.11
Cu	0.59	0.45	0.22	0.22	0.22	0.22	0.20	0.15	1.18	0.68	0.33	0.33	0.33	0.33	0.30	0.31
Fe	0.52	0.36	0.46	0.46	0.20	0.46	0.13	0.40	0.67	0.47	0.58	0.58	0.26	0.58	0.17	0.52
Mn	9.75	7.80	5.09	5.09	6.50	6.50	5.85	4.50	13.83	11.07	7.22	7.22	9.22	9.22	8.30	4.46