| Iron-deficiency anemia is the most common nutritional
deficiency of childhood. Children who fail to receive adequate iron in
their diets to support growth and development will develop iron deficiency.
Iron is required by the body to produce red blood cells, which carry
oxygen through the bloodstream to the tissues. When children
do not have adequate iron, they may become anemic. Anemia means
that the number of red blood cells in the child's body is below normal.
Most children
with anemia have no symptoms. However, even asymptomatic anemia
can cause subtle developmental delays and decreased school performance.
Children with anemia significant enough to cause symptoms may be
pale, tired, irritable, feed poorly, and have greater difficulty
fighting infections.
Who is at risk?
- Children whose diet is low in iron are at risk
for iron deficiency.
- The highest levels of dietary iron are found
in animal proteins. Vegetarians and particularly vegans are at
increased risk of iron deficiency.
- Iron is passed from a pregnant
mother to her fetus late in pregnancy, so premature infants are
at very high risk for iron deficiency and should take an iron
supplement for the first year of life.
- Cow’s milk is very low in iron
and actually blocks the ability to absorb iron from other foods,
so excessive milk intake can also cause iron deficiency.
- Menstruating
females lose iron in their menstrual blood with each period,
so they are also at risk for iron deficiency.
Prevention
- Encourage breastfeeding for the first 4-6 months. The
iron in breastmilk is in an ideal form to be absorbed by an infant’s
body. At 4-6 months, begin iron-fortified cereals.
- For pre-term
infants, supplement with iron drops until 12 months of age.
- Non-breastfeeding
infants should take iron-fortified formulas until 12 months of
age.
- When introducing solids, consider pureed meats, iron-rich foods,
and foods with Vitamin C, which increases the body’s absorption
of iron.
- Children age 1-5 years should limit milk intake to 24
ounces per day or less.
- Limit juice intake and sweets. These decrease
a child’s
appetite for healthy foods that contain iron.
Screening
In the office we routinely check for anemia with a finger-stick
test that measures the hemoglobin level (an indicator of the number
of red blood cells). These finger sticks are performed at the 1-,
2-, and 3-year-old well visits and yearly again once a girl has
started menstruating. We also review each child's dietary history
to evaluate risk for iron-deficiency anemia.
Treatment
If we find that a child is anemic, we will provide counseling
on an iron-rich diet, which includes meat, fish, poultry, raisins,
dried fruits, beans, green peas, sweet potato, peanut butter, and
enriched cereals and breads. To absorb iron efficiently, children
should also have a serving of fruits high in Vitamin C each day. Milk
does not contain iron, so it is best to limit milk intake to 24
ounces per day or less so that children will have an appetite for
iron-rich foods.
In some cases, we may have your child take daily
iron supplements for 2 to 4 months to increase his or her iron
stores. Typically
we will recheck the child's hemoglobin level 4 to 6 weeks after
initiating iron therapy to document an increase in the hemoglobin
level.
Our goal is to ensure that each child we care for consumes a healthy,
iron-rich diet that will prevent iron-deficiency anemia. If anemia
develops, we hope to diagnose and treat it before any harm is done.
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