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Naturally present carcinogens
Carcinogens forming during food preparation
Preservatives and coloring agents added to food
Some substances are changed in to carcinogens in the body
Naturally present carcinogens:
An example of this is 'Aflatoxin', a mycotoxin produced by fungi. Grains and nuts can be contaminated by fungus, which then produce chemicals called aflatoxins. They are known to cause liver cancer in Africa and the Far East, especially in people who are carriers of hepatitis antigens.
Carcinogens forming during food preparation:
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Some cancers, if caught in early stages need not be fatal; others spread quickly and can result in death. There are many types of cancer, but the most common types are: Breast, Colorectal, Lung, Prostate, Skin and Testicular cancers.
All cancers involve the malfunction of genes that control cell growth and cell division. That me ..
Polycyclic hydrocarbons, such as benzopyrenes, are formed during barbecuing meat on an open fire (e.g. preparing jerked chicken). These polycyclic hydrocarbons are also one of the main constituents in cigarette smoke that cause lung cancer.
The traditionally high intake of fried and broiled food, such as meats, can increase the risk of breast, distal colon, prostate and pancreas cancers. Several studies showed that populations that eat fried or broiled meats have a relative risk greater than 2 (deviation from median) for colon and breast cancer.
More than 20 such chemicals have been identified. They are present in fairly small amounts, but their action is promoted, an effect associated with n-6 polyunsaturated oils such as corn or safflower oil at 30-40% of energy in animal and human studies. A lower fat intake, 15-22% of energy, dramatically decreases those effects.
Preservatives and coloring agents added to food: (Need some more tests to establish this relationship).
Food colorings are added to increase the appeal of the food but not all are good for us. An example is "butter yellow". Artificial sweeteners (like saccharine & cyclamates) and preservatives which produce nitrosamines are known to cause bladder and stomach cancers
The Essential Role Of Diet In Cancer Prevention The body is made up of small units called cells. New cells are constantly produced to replace cells that have become worn out or damaged. New cells are also made during growth, e.g. during infancy and childhood.
Normally, the body regulates the growth of new cells but occasionally abnormal cells are produced. These abnormal cells do not function properly and if they are not destroyed by the bodys surveillance system, they may develop (mutate) and also rapidly increase in number, causing cancer.
The abnormal cells may also spread to other parts of the body and multiply there. Cancer can oc ..
respectively.
Some substances are converted in to carcinogens:
Nitrosamines are formed from sodium nitrite. Sodium nitrite is present in drinking water and vegetables.
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Source: http://www.isnare.com Alex FirDietary Carcinogens That Increases The Risk Of Cancer
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