New study suggests that green tea may help prevent the spread of
prostate cancer. Specifically phytochemicals in green tea,
called polyphenols strike growth factors and proteins,
interrupting growth processes of tumors, hence preventing them
from spreading to other organs. Since previous studies suggests
that the same natural plant substances might also help prevent
the start of prostate cancer, researchers suggest that more
studies are needed on green tea's affect on fighting this common
cancer. The best way to decrease your risk of prostate cancer
still lies in eating a mostly vegetarian diet.
Studies on diet and cancer also show that green tea when tested
with mice with an aggressive form of cancer can reduce the
spread or metastasis of prostate cancer to liver, bone, and
other parts of the body. Additional research of green tea may
help develop a treatment to prevent the dormant, non threatening
kind of prostate cancer many men have in their 70's & 80's from
becoming aggressive and fatal. Around six cups of green tea per
day would contain the equivalent amount of polyphenols for
individuals to help block the spread of cancer. Other data shows
that the phytochemicals in green tea could inhibit the early
phases of prostate cancer development.
The phytochemicals seem to increase the number of enzymes that
help convert carcinogens to dormant, harmless forms. Many
questions remain about the amount and frequency of green tea
needed to affect the formation of prostate cancer. Black tea has
shown similar benefits to green tea, though they appear to have
lower levels of the beneficial substances than green tea.
Whatever the benefits of green tea, it would be a mistake to
rely on tea alone for prevention. Studies suggest a variety of
nutritional influences on prostate cancer risk. The use of
Vitamin E may offer some protection. The antioxidant mineral
selenium also seems protective. Most Americans get adequate
amounts of selenium, but these studies used nutrition
supplements, so the study participants achieved higher intake
levels. It waits to be seen whether men can protect themselves
by taking supplements, including multivitamins, with selenium.
If total selenium intake exceeds 400 mcg per day, nerve damage
and other side effects can occur in the individual.
Other good foods for natural nutrition are blueberries,
broccoli, cabbage, Brussels sprouts, flaxseed, soybeans, and
tomatoes. Cooked tomatoes are actually a far better source than
raw tomatoes because the cooking process releases the lycopene
from cells.
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