Iron
Iron is
Good For
Iron
is an essential mineral that contributes to many important
physiologic functions in the body. Much of the iron in the
body is attached to haemoglobin molecules in red blood cells,
thereby delivering oxygen to all of the tissues. Extra iron
is stored in the liver, bone marrow, spleen, and muscles.
Sources of Iron
The best dietary sources of iron are liver and other organ
meats, lean red meat, poultry, fish, and shellfish
(particularly oysters). Iron from these sources is readily
absorbed in the intestines. Other sources of iron include
dried beans and peas, legumes, nuts and seeds, whole grains,
dark molasses, and green leafy vegetables. However, iron
from these sources must be accompanied by certain nutrients
for proper absorption. For example, vitamin C helps the
absorption of this type of iron.
Iron Deficiencies
Significant
deficiency in iron leads to anemia. The most common symptoms
of anemia are weakness and fatigue. Pregnant women, young
women during their reproductive years, and children tend to
be at the highest risk of becoming deficient in iron. Anemia
may be mild, moderate, or severe and may be caused by
significant and/or prolonged blood loss such as that from a
bleeding ulcer, menstruation, severe trauma, surgery, or a
malignant tumor. It can also be caused by an iron-poor diet,
inefficient absorption of dietary iron, pregnancy, and the
rapid growth that takes place during infancy, early
childhood, and adolescence.
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