Levels of Essential Elements in Different Medicinal Plants Determined by Using Inductively Coupled Plasma Mass Spectrometry

Table 3

Provisional maximum tolerable daily intake (PMTDI) of essential elements (Fe, Se, Zn, Mn, and Cu).

Number	Element	PMTDI	Reference
1	Zinc (Zn)	1 mg/kg bw per day (70 mg/day)	[21]
2	Copper (Cu)	0.5 mg/kg bw per day (35 mg/day)	[21]
3	Selenium (Se)	70 μg/day for adults^$	[7]
4	Manganese (Mn)	3 mg/day for adults^$	[6]
5	Iron (Fe)	11 mg/day^£	[8]

Calculated value based on PMTDI, equivalent to mg/day for a 70 kg person; ^$adequate intake (AI)/day; ^£opulation reference intake (PRI).