How Much Iron Do We Need? At What Levels Does Iron Become Toxic?

nded Daily Allowanceunnecessarily prolong the patient's suffering. This is
There is no one single daily recommendedwhy it is important for anyone with these
allowance of iron for everyone at all stages ofsymptoms to go to a doctor for a blood test to
their lives. Because of this fact, many consumersobtain a proper diagnosis. Without a proper
may think that they should take the samediagnosis, there cannot be proper treatment.
amount of iron that they have always taken orWhat is Dietary Iron?
take the same amount as a friend or relative.Dietary iron is comprised of proteins and comes in
This may not be enough to suit their particulartwo types called heme (found in hemoglobin in the
nutritional needs — or it may be too much.blood) and non-heme (found in myoglobin, found in
Fortunately, there are many sources of dietarymuscles and bones.) Dietary iron is marketed
iron and no withdrawal symptoms to if a patientunder the name ferrous sulfate, which is easily
discovers that he or she is consuming too muchavailable in multivitamin supplements or iron sulfate
iron.supplements. But it is also abundant in multiple
America's Food and Drug Administration (FDA)food sources. Vitamin C has been shown to help
publishes a chart breaking down the differences inthe body absorb iron more efficiently, thus eating
the daily recommended dosage of iron:foods rich in vitamin C or taking vitamin C
*Males over 19: 8 milligramssupplements is highly recommended.
*Male vegetarians: 14 mgA common misconception is that meat is the
*Females 19 - 50: 18 mgsuperior source of iron from food. Larger
*Female vegetarians: 32 mgquantities of iron can be found in similar size
*Females over 50: 8 mgportions of porridge, oats and vitamin-fortified
*Pregnant women: 27 mgbreakfast cereals. Iron may also be found in
*Nursing women: 10 mgmany vegetables, milk, eggs, beans, nuts, whole
*Newborns to 6 months: 0.27 mggrains and some starchy foods such as grits.
*Babies 7 — 12 months: 11 mgMany meal replacement powders, liquids and bars
*Children 1 - 3 years: 7 mgcontain iron. Some beverages such as tap water
*Children 4 — 8: 10 mgmay also contain ferrous sulfate.
*Children 9 — 13: 8 mgAvoiding Iron Overdose
*Children 14 — 19: 10 mgThe human body is not an efficient absorber of
This is only a rough guideline. Patients withiron. On average, the body only absorbs 10% of
particular illnesses, women with exceptionallythe iron it consumes. But iron overload is possible
heavy periods, individuals with vitamin Cand can bring debilitating symptoms. Clifford S.
deficiencies or individuals who habitually consumeSpanierman, MD of Lutheran General Hospital and
beverages like tea that interfere with the body'sa specialist in pediatrics and emergency medicine,
absorption may require a doctor to determineestimates iron toxicity to be a major factor in the
their daily levels. Some trial and error may bedeaths of children under six years old. Dr.
needed.Spanierman speculates that children may take iron
Why Bother with Iron?supplements in the mistaken belief that they are
Iron performs several functions in the body. Mostsweets.
importantly, it helps blood transport oxygenSymptoms of iron overdose are dramatic, often
throughout the body. This is why it can be foundincluding copious amounts of diarrhea and vomiting.
in just about every cell of the human body.Dr. Spanierman reports that if a patient can stay
Oxygen and other chemicals help the cell absorbconscious and get to a hospital, the patient has an
glucose (blood sugar), the cell's fuel. Iron is alsoexcellent chance of surviving. But if the patient
thought to play a significant role in the humanbecomes unconscious, the chances of recovery
immune system and in brain function. Althoughare very slim. In extreme cases, blood
very few individuals can attract a magnet, alltransfusions are needed in order to quickly clean
healthy individuals have minute portions of iron inthe excess iron from the body. Dr. Spanierman
their cells.added that women over 65 were also prone to
Patients with iron anemia (also called iron pooriron overdose because they were not aware that
blood) feel exhausted all the time, despite howtheir iron needs drop significantly after the
much sleep and exercise they obtain. Their skin iscompletion of menopause.
often pale or more pale than usual. They mayA good general rule to avoid iron overdose is to
feel as if a weight is on their lungs and complainavoid taking an iron supplement if not instructed
of being faint or short of breath. Without theto by a physician. Because of the dangers of iron
proper amounts of oxygen traveling through theoverdose, it is never a good idea to self-diagnose
bloodstream, the body does not have sufficientone's health problems.
energy to work at maximum efficiency. Life forConclusion
the iron anemic is dreary and overwhelmingIndividuals can suffer if they do not have enough
because of the fatigue. It takes a tremendousiron or die if they consume too much. Iron is
effort to even accomplish simple tasks.easily available in the modern diet through natural
Symptoms of iron anemia are very similar tofoods, nutritional supplements and iron-fortified
those of other chronic conditions such as clinicalfoods. Never guess as to the amount of iron to
depression and thyroid problems. Taking extraconsume.
dietary iron will not help these conditions and will