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Article #129: The Importance of Calcium in the Diet

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Calcium is absorbed in the small the risk of bone fractures, loss of
intestine; this process is dependent on height and formation of a "dowager's
vitamin D. To provide the rigid structure hump" all due to the soft and thinning
of the skeleton calcium is vital, around bones. This will affect one in three
about 3lb of the body's weight is women and one in twelve men by the age of
calcium, 99 per cent being in the teeth seventy.
and bones. It is important in growing The conventional explanation of why
children to help bones grow and the Osteoporosis affects women of a certain
elderly as the ability to absorb calcium age more than men is that once a women
becomes impaired with age. Together with stops menstruating she produces only a
magnesium it is needed for nerves and small amount of the oestrogen which helps
muscles to function properly. It also to keep calcium in her bones. This is why
helps to maintain the right acid/alkaline women are recommended to take hormone
balance and blood to clot. An adult needs replacement therapy (HRT). This is not
a daily calcium intake of between 700 and the case as research has shown that
1000mg. Those at risk of osteoporosis may Progesterone stimulate osteoblasts to
need as much as 1500mg a day. This produce new bone and that by taking
protection is boosted when combined with Progesterone it increases bone density by
linoleic acid from evening primrose oil. four times, oestrogen which stimulates
Calcium and phosphorus work together on a osteoclast cells only stops the loss of
ratio of two to one for healthy teeth and old bone.
bones and calcium and magnesium work A women stops ovulating in the time
together for cardiovascular health. The before and after the menopause. Even
two most deficient minerals in a women's though the body still produces a little
diet are calcium and iron. amount of oestrogen if no ovum is
Calcium supplements have shown to protect released then no progesterone is
against pre-eclampsia which is high blood produced. Scientists now believe that it
pressure in pregnancy. It is a good idea is the deficiency of progesterone not
to increase calcium consumption during oestrogen that is precipitating
the last three months of pregnancy and osteoporosis.
the first few months of lactation to This is not the only factor in the cause
ensure that the baby get sufficient of osteoporosis; diet is also a strong
amount of calcium to help bone factor which is why it is uncommon in
development and growth. If the baby some cultural groups. The lack of calcium
doesn't get enough calcium from its in the diet is thought not to have a huge
mother, it will be withdrawn from the baring on osteoporosis, in fact the Bantu
mothers bones, possibly leading to bone tribes of Africa have on average a
disease in the future. calcium intake of 400mg and their women
Signs of calcium deficiency are rickets, suffer little osteoporosis whereas the
osteomalacia and osteoporosis. Eskimos have a substantial higher intake
Calcium like sodium and potassium of calcium in their diet but their women
contribute to both extracellular and suffer from high incidents of
intracellular cell environment. Calcium osteoporosis. The problem seems to be too
is also needed as intercellular cement to much dietary protein.?
keep the cells of the body together. It The Eskimos have more protein in their
also controls fluid to allow enzyme diet than the Bantu tribes. Protein-rich
reaction to take place. Calcium is vital foods are acid-forming. The body cannot
for the contraction of muscle. The brain tolerate acid level changes and it uses
sends nerve impulses that release calcium the alkaline agents - sodium and calcium
in the muscle which triggers muscle to neutralise the acid effect. When all
reactions. Calcium also helps to control the sodium reserves are used up by the
cholesterol. body it takes calcium from the bones.
Calcium helps in the process of This is why a high protein acid forming
secretion, bile, pancreatic fluid, diet leads to calcium deficiency and may
gastric, intestinal, hormonal and mucous also be the primary cause of
all rely on calcium to move the small osteoporosis. This may well explain why
droplets through the cells boundaries and vegetarian women suffer less from
cell walls. osteoporosis. In fact vegetarians in
The AMP (adenosine monophosphate) is general need less calcium than those who
calcium dependent. This maintains the eat meat because of the reduce intake of
balance of proteins in the body. protein.
Calcium is also needed in the release of Omega 3 and 6 fatty acids which are found
neurotransmitter. These are vital for a in fish oil and evening primrose oil if
proper functioning nervous system. taken in large doses increase the
Calcium is one of the 'buffers' in blood absorption of calcium from the gut like
that helps to keep the levels of acid vitamin D does. Not only do they increase
alkaline. Calcium levels in the blood are calcium absorption but they also reduce
affected by hormones. If levels drop then calcium loss in the urine. PUFAs prevent
Tetany could occur; this is a condition the abnormal deposition of calcium in
that causes tremors and involuntary soft tissue and increase calcium levels
contractions of the muscles. in bones. PUFAs can help with the bone
Osteoporosis, which means "porous bones", loss at menopause.
is at epidemic proportions particularly In summary, calcium is a very important
in women after the menopause. It is a mineral in the diet especially with women
painful and potentially crippling disease at menopausal age. It can stop the onset
which is due to the loss of calcium in of osteoporosis and reduce bone loss and
the bones. By the age of fifty up to 25 fragility. It is also important for
per cent of the skeleton could be missing pregnant women, growing children and the
due to Osteoporosis, this can increase elderly.






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