Source: http://tbthealth..in/2015/06/why-you-shouldn-take-too-much-salt.html?m=1
If salt plays such important roles in the body,
then why is it bad to have too much of it?
Well because it plays such crucial roles in the
body, salt is also very good at having
powerful negative effects too. In fact, a diet
high in salt has been linked to several
conditions.
Some of which are:
Hypertension (High Blood Pressure)
There is lots of different evidence supporting a
link between high salt intake and high blood
pressure.
It is thought that having high levels of sodium
in the body causes a decrease in the synthesis
of nitric oxide. Nitric oxide is an arteriolar
vasodilator. This means that it causes the
blood vessels to widen, reducing the
resistance the blood experiences as it flows.
Sodium is thought to do this by increasing the
levels of a molecule called asymmetric
dimethyl L-arginine. This molecule is an
inhibitor of nitric oxide production, and thus
sodium indirectly causes the reduction of nitric
oxide biosynthesis. Overall then, this means
that there is less nitric oxide. Consequently,
the blood vessels
are not as wide and thus the blood
experiences more resistance, causing higher
blood pressure.
High blood pressure can lead to several
medical problems including heart attack,
stroke and kidney damage.
Osteoporosis
High salt intake has also been linked to
osteoporosis, a condition that causes
weakening of the bones making them more
susceptible to fractures.
Salt is proposed to affect bones by causing
increased calcium excretion in urine. Calcium
is, of course, very important in bones. In fact,
99% of the body’s calcium is stored in our
bones. Thus, loss of calcium, through
excessive excretion, is bad for your bones.
Stomach Cancer
Although salt is necessary in the production of
stomach acid; it seems too much salt can
actually be bad news for the stomach.
Excessive salt consumption has been linked to
stomach cancer. Although the molecular basis
has not yet been confirmed and not all results
of epidemiological studies were in agreement,
there has been a general trend observed that
high salt consumption was correlated with
increased risk of stomach cancer.

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