Conclusion
In conclusion, this study provides additional data on micromineral and heavy metal contents of Nigerian foods and is useful in
risk assessment of consumer exposure to the expected metals.
Furthermore, the estimated daily intakes for the studied metals
are below the limits set by FAO/WHO for metal intake based on
body weight for an average adult (60 kg body weight). Thus, the
consumption of average amount of these foodstuffs does not pose
a health risk to the consumers. Table 6b
Estimation of micromineral and heavy metals intake through consumption of tubers, legumes and cereals in Nigeria.
Foodstuff Mean consumption
(g/person/day)
Conversion factor Cr Cd Pb Ni
Mean levela
(mg/kg)
Intake
(lg /day)
Mean levela
(mg/kg)
Intake
(lg /day)
Mean levela
(mg/kg)
Intake
(lg /day)
Mean levela
(mg/kg)
Intake
(lg /day)
Tubers 321.7 0.279 0.18 16.16 0.01 0.90