Symptoms of Mineral Deficiency
What can mineral deficiencies do?
By: Dr. Obikoya
Minerals are essential to the functioning of organ systems
and our entire body. Some of these minerals exist in large amounts in our body
such as calcium. Others such as manganese exist in trace amounts but are,
nonetheless, critical to our health and well- being.
Minerals are inorganic substances (unnatural and man made)
and they regulate processes within the body. Minerals are in different
structures within the body to create enzymes, hormones, skeletal bones, skeletal
tissues, teeth and fluids. Calcium and phosphorus are the two most common
minerals found in the body. Some of the other prevalent minerals found in the
body are; iron, zinc, sodium, potassium, magnesium, fluoride, sulfur, copper,
and chloride.
If mineral levels are overabundant in the body, such as
sodium, they may facilitate negative effects in the body. High sodium levels may
elevate blood pressure. If mineral levels are inadequate in the body, such as
iron, they may facilitate negative effects in the body. Low iron levels in women
can produce anemia (a deficiency in blood iron levels). Anemia can restrict
oxygen and carbon dioxide removal from the cells. Low calcium levels can
facilitate irregular muscle contractions, bone density loss, blood clotting and
improper brain functioning.
Here is a run-through of the main minerals your body needs
and the effects of their deficiency:
Calcium is essential for building and maintaining healthy
bones, muscle contraction and blood clotting mechanism. Calcium is also
essential to build healthy teeth. Calcium deficiency symptoms include muscle
aches and pains, muscle twitching and spasm, muscle cramps and reduced bone
density. Vitamin D is essential for proper calcium absorption and utilization.
A lack of calcium can cause rickets in children and
osteoporosis in adults. Both conditions cause softening and weakening of the
bones and can result in proneness to fractures. Postmenopausal women are
especially likely to have calcium deficiency because of the reduction in
estrogen during this period in their lives.
Estrogen helps to keep calcium in the bones. Women,
particularly older ones, need to supplement their diets with calcium. Calcium
and vitamin D are important for maintaining bone density and reducing the risk
of fractures. In elderly, ambulatory, white women over the age of 65 who were
not using estrogen replacement, supplementation of calcium and vitamin D
produces a significant improvement in bone density and reduction of fractures.
Through a combination of diet and supplements, women receiving
hormone-replacement therapy (HRT) should get at least 1200 mg/d of calcium,
while the goal should be 1500 mg/d for women not receiving HRT. Recommendations
for vitamin D intake are now 400 IU/d for women aged 51 through 70, and 600 IU/d
for those over 70 years of age.
Children and teenagers, those on restricted diets (avoiding dairy products), the
elderly, vegans and those concerned about osteoporosis also have higher needs
for calcium.
Chromium is involved in the processes that make glucose available for energy. It
is also important for the metabolism of amino acids (the ‘building blocks’
of proteins) and fats. Deficiency symptoms include glucose intolerance or
insulin resistant hyperglycemia (excess sugar in the blood), raised serum lipids
and weight loss. Studies have shown that chromium helps to lower blood sugar in
individuals with type II Diabetes.
Older people (over 55) plus those who exercise regularly as this may increase
the loss of chromium from the body in urine, and will need chromium
supplementation. Note, however, that some chromium supplements contain yeast,
which can interfere with certain prescription medicines. Individuals with
diabetes should only take chromium under medical supervision. Chromium is
unsuitable for pregnant or breast-feeding women, or for epileptics.
We need copper for proteins involved in growth, nerve function and energy
release. It is vital for the formation of some important proteins. It is a
critical functional component of a number of essential enzymes, known as
cuproenzymes. Two copper-containing enzymes, ceruloplasmin (ferroxidase I) and
ferroxidase II are involved in iron metabolism. Copper is stored in appreciable
amounts in the liver. It also has anti-oxidant properties and involved in the
regulation of gene expression.
One of the most common clinical signs of copper deficiency is an anemia that is
unresponsive to iron therapy but corrected by copper supplementation. The anemia
results from defective iron mobilization. Copper deficiency may also result in
abnormally low numbers of white blood cells, which can make you susceptible to
infections and unable to combat them when they occur.
Iron-deficiency anemia is a form of anemia caused by lack of iron. The body
needs iron to make hemoglobin, a substance in red blood cells that carries
oxygen from the lungs to body tissues.
Much of the iron our body is stored in the bone marrow that makes blood cells.
When there is not enough iron in the bloodstream, the body uses the bone marrow
reserves. If this iron stored in the bone marrow is low, red blood cells do not
form properly: they are smaller than usual (microcytosis) and fewer.
As a result, less hemoglobin is available to transport oxygen throughout the
body. Iron-deficiency anemia is the leading nutritional deficiency in the world
and the most common type of anemia. In the United States, approximately 5% of
women and 2% of men have iron-deficiency anemia.
When you have iron-deficiency anemia, you will likely have fatigue, dizziness,
irritability, headaches, difficulty concentrating, shortness of breath during
exercise, a pale appearance, brittle nails, and cracked lips.
You should not take too much iron supplements. Besides the risk of constipation,
a recent study reported in Journal of the American Medical Association, shows
that women who store too much iron in their body may be at increased risk for
type 2 diabetes.
Magnesium plays important roles in the structure and the function of the human
body, involved in more than 300 essential metabolic reactions, including energy
production. The adult human body contains about 25 grams of magnesium. Signs of
magnesium deficiency include low calcium, hence the diseases associated with it,
low serum potassium levels (hypokalemia), retention of sodium, low circulating
levels of parathyroid hormones (PTH,) neurological and muscular symptoms such as
tremors, muscle spasms, tetany, loss of appetite, nausea, vomiting, and
personality changes.
Manganese is a mineral element that is both nutritionally essential and
potentially toxic. It is involved in bone development, wound healing, and it has
anti-oxidant properties. It is also actively involved in the metabolism of
carbohydrates, amino acids and cholesterol. Signs of manganese deficiency
include impaired growth, impaired reproductive function, skeletal abnormalities,
impaired glucose tolerance, and altered carbohydrate and lipid metabolism.
The other trace minerals such as Molybdenum, selenium, phosphorus, iodine,
potassium, sodium and zinc play important roles in our health and well-being and
their deficiencies can create a variety of health problems for us. Thus, iodine
lack can cause goiter, an enlargement of the thyroid gland and its associated
symptoms and an important health problem throughout much of the world. Americans
spend almost $2 billion on vitamin and mineral supplements each year. There is
doubt that this is money well spent all told.
References
Clark LC, Combs GF, Turnbull BW, et al., Effects of selenium supplementation for
cancer prevention in patients with carcinoma of the skin. JAMA, 1996; 276:1957
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Dawson-Hughes B, Harris S, Krall E, Dallal G. Effect of calcium and vitamin D
supplementation on bone density in men and women 65 years of age or older. N
Engl J Med. 1997; 337: 670 676.
Journal of the American Medical Association, February 11, 2004.
Hetzel BS, Clugston GA. Iodine. In: Shils M, Olson JA, Shike M, Ross AC, eds.
Nutrition in Health and Disease. Vol 9th. Baltimore: Williams & Wilkins;
1999:253-264.