The Health Benefits Of Green Tea
Green Tea. There few drinks with as many
important health benefits as green tea, and the Chinese have long
known about the many benefits of this exciting foodstuff. The
Chinese have been using green tea in traditional medicine to treat
problems ranging from headaches and insomnia to depression and
stomach aches.
Modern research
Research done by modern scientists has backed
up the traditional benefits of green tea, with many studies, both
in Asia and the West, finding solid evidence of the many health
benefits associated with drinking green tea on a regular basis.
On often cited study showed a sixty percent decreased in the risk
of esophageal cancer in Chinese men and women who drank green
tea on a regular basis. The study concluded that a compound in
green tea served to inhibit the growth of cancer cells.
In addition, other research seems to indicate
that green tea has the ability to lower both total cholesterol
levels and the ratio of good cholesterol (HDL) to bad cholesterol
(LDL).
Some of the many conditions for which green
tea is thought to be effective include cancer, high cholesterol
levels, high blood pressure, rheumatoid arthritis, cardiovascular
problems, infections and lowered immune system function.
The power of green tea
The secret to the power of green tea is thought
to lie in the fact that it is so high in polyphenols. The most
significant of these ingredients is thought to be epigallocatechin
gallate (EGCG). EGCG is known as a powerful antioxidant, and it
has been shown to both inhibit the growth of cancer cells and
kill cancer cells without injuring healthy body tissue. EGCG has
been shown to be effective at lowering the level of bad (LDL)
cholesterol, and in helping to prevent blood clots from forming.
This may be why green tea has shown such promise in preventing
heart disease and stroke.
In addition, scientists have been studying
the role green tea may play in what has become known as the French
paradox. Many people find it amazing that the French, who eat
diets rich in fatty foods, have a much lower level of heart disease
than do Americans. The answer to the French paradox is thought
to lie in the healthful benefits of red wine. Red wine contains
resveratrol, which is a polyphenol thought to mitigate the effects
of the fatty French diet. Studies have shown that EGCG, a main
ingredient of green tea, is twice as powerful as the ingredients
found in red wine.
What makes green tea so special?
While green tea, oolong tea and black tea
are all made from the leaves of the camellia sinensis plant, green
tea is different in the way it is processed. The leaves of green
tea are steamed, which helps to prevent the oxidation of the important
EGCG compound. Black tea and oolong tea, on the other hand, are
made from leaves that are fermented, and this means that the EGCG
they contain is converted to other, less effective, disease fighting
chemicals.
In addition to its many traditional health
benefits, there is even evidence that green tea can be helpful
when trying to lose weight. One study found that those who consumed
a combination of green tea extract and caffeine burned a higher
number of calories than those only taking caffeine.