Too Much Of Animal Protein May Lead To Cancer
July 13, 2006
www.medindia.com

Diet also plays an important role in the development of cancer. Protein
as a micronutrient may play a significant role in the cancer
development.

It is found that some proteins are actually promoters of cancer growth.
In the book titled The China Study which is published by Benbella Books
and authored by Dr. T. Colin Campbell a detailed analysis of the
existing relationship between nutrition and cancer risk is evident. Dr.
T. Colin Campbell a nutrition professor from Cornell University in his
book reports about how animal proteins promote cancer growth while
plant proteins do not. He also says in the book that the American diet
is in favor of cancer development. Statistics show that about 40 %
percent of the population in the US is expected to develop one type of
cancer or another in their life time.

This is because of their western diet which is characterized by high
fat and high animal protein. Animal nutrients such as casein and other
nutrients are found to be promoters of cancers while plant proteins
such as soy protein and wheat protein gluten do not have a promoting
effect on cancer. He says that vegetarian diet with no protein from any
animal source reduces the risk of cancer. In one of the author's animal
studies it was found that a diet with 5 % of the total calories from
protein lowers the activity of an enzyme that can convert aflatoxin
into a toxic form that leads to liver cancer.

On the other hand when the rats were fed with 20 % casein the same
enzyme activity increased by 76 % resulting in an increased risk of
cancer. Hence the author concluded that exposure to carcinogens may be
less likely to cause cancer in a person whose diet contains a
sufficiently low protein. The results suggest a low protein diet can
also prevent toxins from entering cells, lowers the cell multiplication
rate and protects against the formation of toxin-DNA adducts. He also
mentions that the adequate percentage of protein for body growth is 10
%. Dr. Campbell's team also found that hepatitis B virus, which is
known to be a carcinogen that causes liver cancer, does not cause as
much damage in rats which were given a diet with 5 % protein when
compared to rats fed with a diet containing 20 % protein.

The Chinese on average consumed less than 10 % of protein from their
diet, among which 90 % of protein comes from plants. On the other hand
Americans consumed more than 15 % of protein in their diet, among which
more than 80 % comes from animal source. This difference in protein
content may cause at least seven-fold difference in cancer risk. A diet
with high animal protein increases risk of breast cancer. Similarly a
diet rich in red meat and processed meat resulted in an elevated risk
of colon cancer. Link between dairy products and prostate cancer has
already been established.

Who loves ya.
Tom

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