Skip to main content

Advertisement

Table 3 Provisional Tolerable Weekly Intake (PTWI) of Essential Elements (Se, Zn, Mn and Cu) and their provisional maximum tolerable daily intake (PMTDI)

From: Estimated dietary intake of essential elements from four selected staple foods in Najran City, Saudi Arabia

No. Elements PTWI PMTDI References
1 Selenium (Se) 66 μg/kg bw/week 9.4 μg/kg bw/day JECFA; WHO, 72 (2011) [70]
2 Zinc (Zn) 7 mg/kg bw/week 1 mg/kg bw/daya JECFA; WHO, 26 (1982) [71]
3 Manganese (Mn) 2.5 mg/kg bw/week 0.36 mg/kg bw/day JECFA; WHO, 26 (1982) [72]
4 Copper (Cu) 3.5 mg/kg bw/week 0.5 mg/kg bw/daya JECFA; WHO, 26 (1982) [73]
  1. aCalculated value based on PTWDI