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Eating
Right to Build a Healthy Heart
Heart
disease is our number one killer. More Indians are dying
each year of heart disease than any other illnesses. And
sadly, many of these deaths are needless. They could have
been prevented; not with sophisticated drugs but with some
simple dietary modifications. Putting more fibre in your
diet can guard your heart and circulatory system against
the devastating effects of a “civilized” diet.
The relationship between
cholesterol and heart disease has been debated by the
medical fraternity for over 10 years. A basic
understanding of the issues involved will help you to
comprehend the role of fiber in protecting your heart.
There are many ways in
which the heart may become diseased-the heart muscle it
self can weaken, the built-in electrical stimulator that
keeps it going may become erratic, the lining of the heart
can become infected, or a heart valve may become faulty.
But the great killer among heart diseases is coronary
heart disease or “heart attack” as it is popularly
known. Its precursor is atherosclerosis, a disease in
which hardened fatty plaques (composed largely of
cholesterol) build up on the inside of artery walls. A
coronary artery (one feeding the heart) may become
blocked, by plaque buildup. Or it may be come so narrow
and its once smooth inner walls so rough and jagged that a
clot forms (coronary thrombosis) and plugs up the passage,
pre venting blood and oxygen from reaching the heart,
causing a heart attack.
Heart attacks and high
serum cholesterol levels have been linked together
statistically It was determined that high levels of
cholesterol in the blood serum do indeed mean an increased
risk of death from heart attack.
The medical establishment has adopted the position that
this is a case of cause and effect and that bringing down
cholesterol levels will lower the incidence of heart
deaths. Unfortunately, singling out dietary cholesterol
and saturated fats as the prime villains of the heart
disease story has deprived many patients of such fine,
nutritious (but cholesterol-
rich) foods as eggs and liver. Patients are made to give
up all fats derived from animals, such as butter, cheese,
whole milk, and all but the leanest of meats.
But this kind of harsh
dietary restriction isn’t always necessary. Doctors have
found that introducing more fibre into the diet lowers
serum cholesterol in individuals with a high content of
cholesterol in their blood (i.e. potential heart attack
victims). Conversely, when fiber consumption is reduced,
cholesterol levels rise.
Where
Does The Cholesterol Go?
The precise mechanism whereby dietary fiber might
influence serum cholesterol is not yet fully understood.
But possibly it is related to fiber’s effect on bile
acids. The larger the stools a person forms, the more bile
acids he excretes, and a high-fiber diet helps insure
these large stools.
But what
have bile acids to do with this whole cholesterol picture?
Cholesterol (which we synthesize in our own bodies as well
as ingest with foods) is the precursor of bile acids. From
cholesterol in the liver, bile acids are manufactured and
sent via the bile duct into the top portion of the small
intestine (duodenum). Here their job is to help in the
digestive breakdown of dietary fats, after which function
some bile acids travel down the intestinal tract and are
excreted with the feces, while the greater portion is
reabsorbed into the body and travels back to the liver via
the bloodstream.
You can see
why a dietary factor that increases fecal excretion of
bile acids might also lower serum cholesterol levels. For
as long as plenty of reabsorbed bile acids are returning
to the liver, there is no need to manufacture great
quantities more and cholesterol that would have been used
for bile acid synthesis is not metabolized in this fashion
but remains in the system. Thus, the major mechanism
whereby cholesterol leaves the body-by catabolic
metabolism into bile acids-is reduced in efficiency when
our natural diet is deprived of its fiber content.
Moreover,
there is evidence that fiber content in the intestines
also reduces the absorption of cholesterol taken in with
foods. So a high-residue diet, typical of primitive
societies, would promote the excretion of both the
catabolized cholesterol (present as bile acids) and
ingested cholesterol.
Of course we
know that other factors beside fiber deficiency help cause
coronary heart disease. There are such well-known and
undisputed steps for reducing heart risk as: don’t
smoke, maintain ideal weight, exercise regularly And when
it comes to diet, we know that fiber deficiency cannot be
the only culprit.
Hand in hand
with fiber deficiency goes overconsumption of sugar.
Researchers have found that adding sugar to the diet
raises the level of blood cholesterol.
Just stop and
think, for a moment, about the average diet-maybe your own
diet. Our systems are full of cholesterol because we’re
eating lots of sugar, but our meals contain so little
fiber that much of that cholesterol isn’t even being
metabolized! Is it any wonder then that heart disease is a
number one killer? Therefore seasonal fruits and raw
salads should be eaten regularly.
Most of us are
aware of the need to eat less sweets. Many heart patients
are tuned in to the importance of a good diet, and many
conscientiously try to cut out sweets, alcohol, and excess
fat. But there is another dimension to diet which is of
great importance to the heart patient, although few know
much about it, and others prefer not to think about it.
We are talking about what happens to the food you eat
regardless of whether it is high or low in cholesterol
when it reaches your lower bowels and need to be
eliminated.
Many of us
have heard of someone we know who had a weak heart and was
found dead in the bathroom. Depending on your Age, you may
also be aware that there is a strange tendency for people
to collapse in the bathroom when they are not known to
have a bad heart.
The blunt
truth is that the majority of these people have died
before their time as an indirect result of one of the most
common diseases in the modem world-constipation.
It is not
constipation itself which poses the danger but straining
at stool. The abnormal stress which straining puts on the
heart is much greater than you might imagine. In fact,
even people who have no signs of a heart problem can
dangerously overburden their hearts when straining. Tests
have shown in people with no previous history of heart
disorder that straining produces significant changes in
heart rate, blood pressure. Further, these changes closely
resemble those which are observed in known heart patients.
Specifically, about twelve percent of straining episodes
are found to be of sufficient intensity and duration to
produce notable abnormalities. The frequency of such
incidents is increased five times by the problem of
constipation.
Another aspect
of the problem involves the changes in size undergone by
the veins in the rectum and legs during bathroom
straining. These changes are much greater in constipation
and sometimes may cause blood clots to break loose from
veins and travel towards the heart.
So while
constipation certainly isn’t fun for anybody, it can be
downright dangerous and life threatening to older people
and those of any age who are in a weakened condition.
People who are confined to bed following surgery or
hospitalization are particularly vulnerable-not only to
constipation but to the damage which straining can cause.
Once again, the right kind of diet could be your
salvation. If you have heart trouble (and to be on the
safe side even if you don’t), cut down on the amount of
sweet foods you consume. Cutting out sweets can also
protect you from obesity and diabetes. So increase fiber
intake and lower cholesterol foods to cure constipation
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