Iron absorption is a process in which the body takes in and utilizes iron, a mineral essential for proper development and functioning of the body. Iron is found in various foods, including red meat, dark green leafy vegetables, legumes, and grains. However, there are certain factors that can interfere with the absorption of iron and reduce its effectiveness.
One of the primary factors that can decrease iron absorption is the presence of certain compounds in foods. Phytates, found in legumes, nuts, and grains, can bind to iron and reduce its absorption. Oxalates, found in certain leafy greens and certain fruits, also bind to iron and reduce absorption.
Another factor that can reduce iron absorption is the presence of other minerals. Calcium can reduce the absorption of iron, as can zinc. This is because minerals compete with each other for absorption, so if there is an excess of one mineral, the absorption of other minerals will be reduced.
Drinking coffee or tea can also decrease iron absorption, as both contain tannins, which bind to iron and reduce its absorption. Taking vitamin C with meals can also reduce iron absorption; this is because vitamin C increases the absorption of other minerals, such as calcium and zinc, which then compete with iron for absorption.
Finally, certain medications can also interfere with iron absorption. These include antacids, antibiotics, and non-steroidal anti-inflammatory drugs.
In summary, iron absorption can be reduced by the presence of certain compounds in foods, the presence of other minerals, drinking coffee or tea, taking vitamin C with meals, and certain medications.