Ascorbic acid is a potent enhancer of iron absorption because it
Ascorbic acid enhances iron absorption mostly by its reducing capacity, keeping iron in the ferrous state. Ascorbic acid does not enhance heme iron absorption, nor does it affect heme oxygenase activity or the produc on of ferritin or transferrin.
Enhances the absorption of heme iron
Enhances the activity of heme oxygenase
Is a reducing agent, thereby helping to keep iron in the ferrous state
Decreases the production of ferritin by enterocytes
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