This Life-Saving Mineral Found To Actually Increase Senility in
Many
by
Joseph Mercola
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- Iron is
an essential metal for your health, but too much can lead to the
production of free radicals that can damage neurons in your brain,
along with other tissues and organs
- Excess
iron accumulation in the brain is a consistent observation in
Alzheimer's disease; a new animal study revealed that reducing
iron levels in the blood triggered levels of beta-amyloid, which
are associated with Alzheimer’s, to return to normal
- Separate
research also showed that reducing excess iron in the brain can
alleviate Alzheimer's-like symptoms in mice
- A serum
ferritin blood test is a simple way to determine if your iron
levels are too high; if they are, donating blood or getting a
prescription for therapeutic phlebotomy is a simple solution
Iron is essential
for virtually every life form, including humans, where it is a key
part of various proteins and enzymes, involved in the transport
of oxygen and the regulation of cell growth and differentiation,
among other uses.
One of the
most important roles of iron is to provide hemoglobin (the protein
in red blood cells) a mechanism through which it can bind to oxygen
and carry it throughout your tissues, as without proper oxygenation
your cells quickly start dying.
If you have
too little iron, you may experience fatigue, decreased immunity
or iron-deficiency anemia, which can be serious if left untreated.
However, if
you have more iron than your body needs to satisfy your hemoglobin
requirement (for cell oxygenation), the excess becomes a dangerous
surplus.
Your body has
a very limited capacity to excrete iron, which means it can build
up in your tissues and organs, a dangerous occurrence because iron
is a potent oxidizer and can damage your body tissues contributing
to serious health issues, including Alzheimer's disease.
Reducing Iron
Levels May Protect Your Brain from Alzheimer's
High iron levels
in your blood can lead to the production of free radicals that can
damage neurons in your brain. It's also believed that iron accumulates
at high levels, and is extremely reactive in the beta-amyloid plaques
found in the brains of Alzheimer's patients.
A new animal
study revealed that reducing iron levels in the blood triggered
levels of beta-amyloid and phosphorylated tau protein, which disrupts
the ability of neurons to conduct electrical signals, to return
to normal.1
Experts on
metal metabolism in the body said the research highlights the role
of metal ions in the development of Alzheimer's, as excess iron
accumulation in the brain is a consistent observation in Alzheimer's
disease.
Separate research
also showed that reducing excess iron in your brain can alleviate
Alzheimer's-like symptoms in mice,2
while measuring brain iron has been suggested as a way to detect
Alzheimer's disease in its early stages.3
Iron is also
known to accumulate specifically in brain regions associated with
memory and thought processes, which are gradually lost as Alzheimer's
progresses. At this time it's not entirely clear whether the excess
iron is the result of external sources, such as supplements or metal
pans, or due to a genetic predisposition to absorbing too much iron
or biochemical changes that cause an imbalance internally
likely it's a combination of factors.
What is known
is that too much iron in the wrong places is clearly toxic, and
when accumulated in neurons may be a "final end-stage event in neurodegeneration."4
How do You
Know if Your Iron Levels are High?
Checking your
iron levels is done through a simple blood test called a serum ferritin
test. I believe this is one of the most important tests that everyone
should have done on a regular basis as part of a preventive, proactive
health screen. The test measures the carrier molecule of iron, a
protein found inside cells called ferritin, which stores the iron.
If your ferritin levels are low it means your iron levels are also
low.
The healthy
range of serum ferritin lies between 20 and 80 ng/ml. Below 20 is
a strong indicator that you are iron deficient, and above 80 suggests
you have an iron surplus. The ideal range is between 40-60 ng/ml.
The higher the number over 100 the worse the iron overload, with
levels over 300 being particularly toxic and will eventually cause
serious damage in nearly everyone that sustains those levels long
term.
Fortunately
most premenopausal women lose iron every month when they menstruate.
As a result, menstruating women rarely suffer from iron overload
syndromes, as removing blood from your body is the most effective
way to lower iron levels. However, most adult men and postmenopausal
women tend to be at a high risk for iron overload and all of its
toxicity, as they don't have this monthly blood loss.
Additionally,
some people also have a genetic predisposition to absorbing too
much iron, which is called either hemochromatosis or hemosiderosis.
Interestingly, one of the most common causes of excess iron is the
regular consumption of alcohol. Alcohol consumed on a regular basis
will increase the absorption of any iron in your diet. For instance,
if you drink some wine with your steak, you will likely be absorbing
more iron than you need. Other potential causes of high iron levels
include:
- Cooking
in iron pots or pans. Cooking acidic foods in these types of pots
or pans will cause even higher levels of iron absorption.
- Eating processed
food products like cereals and white breads that are "fortified'
with iron. The iron they use in these products is inorganic iron
not much different than rust and it is far more dangerous than
the iron in meat.
- Drinking
well water that is high in iron. The key here is to make sure
you have some type of iron precipitator and/or a reverse osmosis
water filter.
- Taking multiple
vitamins and mineral supplements, as both of these frequently
have iron in them.
What to Do
if You Have High Iron Levels
Some people
advise using iron chelators like phytic acid or IP6, but I don't
think that is a wise approach as donating your blood is a far safer
and more effective and inexpensive approach for this problem. If,
for some reason, a blood donor center is unable to accept your blood
for donation you can obtain a prescription for therapeutic phlebotomy.
At the same time, you will want to be sure to avoid consuming excess
iron in the form of supplements, in your drinking water (well water),
from iron cookware, or in fortified processed foods.
Certain phenolic-rich
herbs and spices can reduce iron absorption, such as green tea and
rosemary.5
Curcumin actually acts as an iron chelator, and in mice studies,
diets supplemented with this spice extract exhibited a decline in
levels of ferritin in the liver.6
Lastly, astaxanthin, which has been researched to have over 100
potential health benefits,7
has been shown to reduce iron-induced oxidative damage.8
Keep in mind,
however, that iron is only one problematic metal for your brain.
Others, including zinc, aluminum and copper,
are also known to accumulate in your brain and are similarly linked
to Alzheimer's disease.
Tips for Preventing
Alzheimer's Disease
Alzheimer's
disease is currently at epidemic proportions, with 5.4 million Americans
including one in eight people aged 65 and over living
with Alzheimer's disease, according to the Alzheimer's Association's
2011 Alzheimer's Disease Facts and Figures.9
By 2050, this is expected to jump to 16 million, and in the next
20 years it is projected that Alzheimer's will affect one in four
Americans.
You do not,
however, have to feel powerless against this disease, as although
there is no known cure as of yet, there are simple strategies available
to significantly lower your risk. Some of the best strategies for
Alzheimer's prevention, aside from avoiding excess iron, include:
- Fructose.
Most everyone benefits from keeping their total fructose
consumed to below 25 grams per day. Fructose has several modes
of neurotoxicity, including causing damage to the circulatory
system upon which the health of nervous system depends, as well
as changing the brain's craving mechanism. Since the average person
is exceeding this recommendation by 300% this is a pervasive and
serious issue. I view this as the MOST important step you can
take.
Additionally,
when your liver is busy processing fructose (which your liver
turns into fat), it severely hampers its ability to make cholesterol,
an essential building block of the brain crucial to its health.
This is yet another important facet that explains how and why
excessive fructose consumption is so detrimental to your health.
- Improve
Magnesium Levels. There is some exciting preliminary
research strongly suggesting a decrease in Alzheimer symptoms
with increase levels of magnesium in the brain. Unfortunately
most magnesium supplements do not pass the blood brain levels,
but a new one magnesium threonate appears to do and holds some
promise for the future for treating this condition.
- Optimize
your vitamin D levels with safe sun exposure. Strong
links between low levels of vitamin D in Alzheimer's patients10
and poor outcomes on cognitive tests have been revealed. Researchers
believe that optimal vitamin D levels may enhance the amount of
important chemicals in your brain and protect brain cells by increasing
the effectiveness of the glial cells in nursing damaged neurons
back to health. Vitamin D may also exert some of its beneficial
effects on Alzheimer's through its anti-inflammatory and immune-boosting
properties. Sufficient vitamin D is imperative for proper functioning
of your immune system to combat inflammation that is also associated
with Alzheimer's.
- Keep
your fasting insulin levels below 3. This is indirectly
related to fructose, as it will clearly lead to insulin resistance.
However other sugars, grains and lack of exercise are also important
factors.
- Vitamin
B12: According to a small Finnish
study recently published in the journal Neurology,11
people who consume foods rich in B12 may reduce their risk of
Alzheimer's in their later years. For each unit increase in the
marker of vitamin B12 (holotranscobalamin) the risk of developing
Alzheimer's was reduced by 2 percent. Very high doses of B vitamins
have also been found to treat
Alzheimer's disease and reduce memory loss.
- Eat
a nutritious diet, rich in folate, such as the one described
in my nutrition
plan. Strict vegetarian diets have been shown to increase
your Alzheimer's risk,12
whereas diets high in omega-3's lower your risk.13
However, vegetables, without question, are your best form of folate,
and we should all eat plenty of fresh raw veggies every day.
- High-quality
animal based omega-3 fats, such as krill oil. (I recommend
avoiding most fish because although fish is naturally high in
omega-3, most fish are now severely contaminated with mercury.)
High intake of the omega-3 fatty acids EPA and DHA help by preventing
cell damage caused by Alzheimer's disease, thereby slowing down
its progression, and lowering your risk of developing the disorder.
Researchers have also said DHA "dramatically reduces the impact
of the Alzheimer's gene."
- Avoid
and remove mercury from your body. Dental amalgam fillings
are one of the major sources of mercury, however you should be
healthy prior to having them removed. Once you have adjusted to
following the diet described in my optimized nutrition
plan, you can follow the mercury
detox protocol and then find a biological dentist to have
your amalgams removed.
- Avoid
aluminum, such as antiperspirants, non-stick cookware,
vaccine
adjuvants, etc.
- Exercise
regularly. It's been suggested that exercise can trigger
a change in the way the amyloid precursor protein is metabolized,14
thus, slowing down the onset and progression of Alzheimer's. Exercise
also increases levels of the protein PGC-1alpha. Research has
also shown that people with Alzheimer's have less PGC-1alpha in
their brains,15
and cells that contain more of the protein produce less of the
toxic amyloid protein associated with Alzheimer's. I would strongly
recommend reviewing the Peak
Fitness Technique for my specific recommendations.
- Avoid
flu vaccinations as most contain both mercury and aluminum!
- Eat
plenty of blueberries. Wild blueberries, which have high
anthocyanin and antioxidant content, are known to guard against
Alzheimer's and other neurological diseases.
- Challenge
your mind daily. Mental stimulation, especially learning
something new, such as learning to play an instrument or a new
language, is associated with a decreased risk of Alzheimer's.
Researchers suspect that mental challenge helps to build up your
brain, making it less susceptible to the lesions associated with
Alzheimer's disease.
- Avoid
anticholinergic and statin
drugs. Drugs that block acetylcholine,
a nervous system neurotransmitter, have been shown to increase
your risk of dementia. These drugs include certain nighttime pain
relievers, antihistamines, sleep aids, certain antidepressants,
medications to control incontinence, and certain narcotic pain
relievers.
A study found
that those who took drugs classified as 'definite anticholinergics'
had a four times higher incidence of cognitive impairment.16
Regularly taking two of these drugs further increased
the risk of cognitive impairment. Statin drugs are particularly
problematic because they suppress the synthesis of cholesterol,
deplete the brain of coenzyme Q10 and neurotransmitter precursors,
and prevent adequate delivery of essential fatty acids and fat-soluble
antioxidants to the brain by inhibiting the production of the
indispensable carrier biomolecule known as low-density lipoprotein.
References:
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Copyright ©
2012 Dr. Joseph Mercola
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