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E 172 Iron oxides

E172(i) black iron oxide,CI 77499
E172(ii) red iron oxide, CI 77491
E172(iii) yellow iron oxide, CI 77492

Origin:
Natural minerals, but commercially made from iron powder.

Function & characteristics:
Only used for surface coating

Products:
Widely used

Acceptable Daily Intake:
Up to 0.5 mg/kg bodyweight

Side effects :
No side effects known.

Dietary restrictions :
None, E172 can be consumed by all religious groups, vegans and vegetarians. The iron is not absorbed in the body.