Why Iron is Important
Why Iron is Important
Iron aids in the transport of oxygen through the body via red blood cells
and the storage of oxygen in the muscles. Liver detoxification,
metabolism of fatty acids and immune system function all need iron.
Iron is an integral part of many proteins and enzymes that maintain good
health. In humans, iron is an essential component of proteins involved in
oxygen transport. It is also essential for the regulation of cell growth and
differentiation. Iron deficiency limits oxygen delivery to cells, resulting in
fatigue, poor work performance, and lowered resistance to diseases.
Almost two-thirds of iron in the body is found in hemoglobin, the protein
in red blood cells that carries oxygen to tissues. Smaller amounts of iron
are found in myoglobin, a protein that helps supply oxygen to muscle,
and in enzymes responsible for biochemical reactions.
Iron Deficiency
Iron is found in animal foods such as red meats, fish, and poultry. To a
lesser degree it is also found in plant foods such as lentils, beans, and
rice--although for some reason, the body does not take to iron sourced
from vegetables as well as from animal sources.
The Recommended Dietary Allowance (RDA) for iron is 8 mg. for males
and 18 mg. for females per day.
Iron supplementation is usually required when regular diet cannot restore
deficient iron levels to normal. Supplements are especially important
when an individual is experiencing clinical symptoms of iron deficiency
anemia. They usually provide sufficient iron and replenish hemoglobin
shortage in the body. Specialists are required to determine how much
supplements the patient should take as certain minerals such as calcium
in tea can inhibit the body's ability to absorb iron.