Final answer:
Iron absorption can be inhibited by drinks such as tea, coffee, and milk due to substances that bind iron. To ensure better iron absorption, these drinks should not be consumed with iron-rich meals. Reduced iron, often used in food fortification, is converted to Fe²+ in the digestive system for absorption.
Step-by-step explanation:
Drinks such as tea, coffee, and milk can inhibit the absorption of iron in the body. These beverages contain compounds that bind to iron, making it more difficult for the body to absorb this essential nutrient. It is generally recommended that you avoid drinking tea, coffee, or consuming calcium-rich foods like milk with meals that are meant to increase iron intake, especially if iron deficiency is a concern. These drinks should ideally be consumed at least an hour before or after a meal to ensure adequate iron absorption.
When discussing the fortification of food with iron, reduced iron is often used as an additive, especially in products like bread and breakfast cereals. This form is a fine metallic powder that is oxidized to the bioavailable Fe²+ form in the digestive system. However, Fe²+ salts might also be used directly as a fortifying agent.