Saturday, April 26, 2008

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IRON OVERLOAD
AVOID
Iron supplements
Alcohol, if there is liver damage.
High doses of vitamin C.

The human body needs a steady supply of iron, but only in tiny amounts-about 10 mg to 15 mg a day for healthy adults. In fact, hemochromatosis, the most common form of iron overload disease, can cause irreversible heart and liver damage.
The body can utilize two types of iron-heme, which comes from animal sources, and nonheme, which comes from plants. The body absorbs from plants. When the body’s iron reserves are low, the absorption of nonheme iron increases. Consuming iron-rich plant foods with meat or with good sources of vitamin C boosts nonheme iron absorption.


GENETIC FACTORS INFULENCE IRON ABSORPTION
An iron overload does not produce symptoms until a damaging amount has accumulated in muscle tissue, the spleen, and other organs; this usually occurs during middle age. One of the first indications is a ruddy complexion; the person may also suffer fatigue, joint and intestinal pain and an irregular heartbeat. As the liver becomes damages, jaundice may develop.
A blood test can be used to diagnose an iron overload; in some cases, a liver biopsy may also be ordered. Treatment involves periodic removal of a pint or so of blood, which reduces iron levels by forcing the body to use some of its stores to make new red blood cells.


EVEN MODERATELY ELEVATED IRON LEVELS MAY SET THE STAGE FOR HEART DISEASE
One study reported that men whose blood iron levels were in the high-normal range were more likely to develop coronary artery disease than those with low-to normal levels. This supports the theory that excessive iron may injure the artery walls and promote the formation of fatty deposits. This damage may be due to iron’s ability to catalyze oxidation processes. Controversy continues over iron and heart disease risk, with linked with heart disease and others finding no link. Some researches also think that iron may contribute to the joint pain and damage that many women endure following menopause. The message continues to be that you should only take supplements if you are iron deficient.

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