Stacking The Deck - Choosing Foods That Fight Cancer
The healthiest diet, of course, is to eat a wide variety of
foods including as many whole grains and fresh fruits and
vegetables as possible. But, there are some foods that, through
their chemical natures, are better at protecting the body from
cancer. This article identifies nine of these super-foods, the
natural components found in them, and a simplified description
of how these phytochemicals work their magic.
Before we do that, however, two very important dietary rules for
avoiding cancer must be mentioned: low fat, high fiber. A diet
that is high in animal fats requires the body to release extra
bile acids into the intestines during digestion. The natural
bacteria that live in our intestines react with these excess
bile acids resulting in the creation of carcinogens. Eating
plenty of fiber keeps the intestines moving quickly, not
allowing these carcinogens to cause damage before being
eliminated from the body. In addition, fiber in the intestines
actually binds with the bile acids not allowing them to react
with the natural bacteria.
The human body is constantly producing unstable molecules called
oxidants. You may have heard these oxidants referred to as free
radicals. Free radicals steal electrons from other molecules
which damages the cell proteins and DNA of the original
molecule. This damage leaves the cell vulnerable to cancer. The
active chemicals in food, called phytochemicals, are
anti-oxidants. They search out the oxidants (free radicals) and
prevent them from causing damage. In some instances,
phytochemicals can even repair damage already done. Here's how
it works.
Broccoli
Sulforaphane, found in broccoli and other cruciferous
vegetables, boosts the body's natural cancer fighting
properties. It does this by mobilizing special enzymes in the
body called phase II detoxifying enzymes. These enzymes
neutralize cancer-causing agents before they can affect cells.
To receive the maximum benefit of sulforaphane, broccoli should
be eaten raw. Scientists recently discovered that broccoli
sprouts contain levels of sulforaphane that are much, much
higher than those found in mature broccoli. You'll be seeing a
lot more broccoli sprouts on my sandwiches and salads!
Carrots
Another recent discovery in the science of plant chemicals is
falcarinol found in carrots. Falcarinol acts as a natural
pesticide for the carrot while it is growing, keeping it
protected from fungal diseases. The exact mechanism that
falcarinol uses to fight cancer is still unknown. Chili Peppers
Capsaicin is the chemical in hot peppers that give them their
bite. At a cellular level, capsaicin induces a state called
apoptosis in the cancer cells. Apoptosis can be defined as
programmed cell death. You could say that it causes the cancer
cell to commit suicide.
Garlic
Garlic contains a chemical allium, which works to increase
activity of our body's natural immune cells. Allium also causes
cells to become more vulnerable to stress created by the
by-products of cell division. Since cancer cells divide very
rapidly, they are affected by allium more than normal cells,
which divide much more slowly.
Nuts
Nuts are one of nature's best sources of selenium. Selenium has
been shown to improve the efficiency with which DNA repairs
itself after exposure to damaging free radicals. Brazil nuts
eaten from the shell are especially high in selenium. In
addition, nuts contain omega-3 fatty acid. The omega-3 fatty
acids block a protein that has been shown to increase
sensitivity to carcinogens in laboratory studies.
Red grapes
Anthocyanins, found in dark red and purple foods, can reduce the
growth of an enzyme, human DNA topoisomerase II, that triggers
the growth of cancer cells in the human body. Grape juice is an
excellent source of anthocyanins. Good news, read the labels of
100% fruit drinks and you are very likely to find grape juice.
Soy
The phytochemical in soy, genistein, inhibits the growth of new
blood vessels necessary for tumor survival. Without these blood
vessels, the tumor shrinks. Soy also works to block bile acids.
Tea
Antioxidants in tea, catechins, appear to prevent cancer cells
from dividing. The phytochemical EGCG (epigallocatechin gallate)
present in green tea, binds to a protein found on tumor cells
and dramatically slows their growth.
Tomatoes
Lycopene, a very powerful antioxidant, isn't found in many other
fruits and vegetables. Lycopene stimulates the production of
phase II detoxification enzymes which neutralize carcinogens and
allow them to be excreted out of the body. Processing tomatoes
by turning them into sauce increases the levels of lycopene.
So remember, choose vegetables fats over animal fats, pack your
diet with a wide variety of fruits, vegetable and whole grains,
and include the nine foods mentioned above often. Live a long,
healthy, happy life!