The incidence of cancer seems to be getting higher and higher in our lives, and this has a lot to do with our daily diet. Studies have shown that cancer is largely eaten up, and carcinogenic foods common in life are Which?
Cancer is eaten
1, the inherent ingredients of the diet and cancer
Nitrosamines
It is a very strong carcinogen. According to analysis, the positive rate of discovery of nitrosamines in the low-incidence areas of esophageal cancer is only 0 to 1.2%, while in the high-incidence areas of Henan, Linxian has reached 23.3% to 33.3%. Further analysis, Lin County contains more nitrosamines in its food, such as nitrates and nitrites. These compounds can bind to secondary amines in the stomach of a human or animal to synthesize nitrosamines.
fat
Some foreign countries analyzed the stools of Americans who had eaten a high-fat diet, Japanese who had recently moved to the United States, Chinese, and strict vegetarians. They found that metabolites and cholesterol in the stools of the first group of Americans. The metabolites and bacterial β-glucuronidase activities were significantly higher than those in the other three groups. The structure of cholic acid, the structure of certain neutral sterols of cholesterol metabolites and the carcinogenic PAHs are very similar, and the anaerobic bacteria in the intestinal lumen play a role in promoting colorectal cancer.
protein
Medical scientists have found that in the capitalist countries, the incidence of gastric cancer in the poor is higher than that of the rich. Some people further investigated the relationship between milk and the onset of gastric cancer. Four groups, namely non-dairy drinking, sometimes drinking, drinking 180 milliliters of each day, and drinking 360 milliliters or more per day were included in the four groups to estimate the relative risk of gastric cancer. It is 1.0, 0.77, 0.45, and 0.2. Japan and Chile, which have high rates of gastric cancer, have seen a decline in the incidence of gastric cancer as the amount of milk consumed has increased in recent years. Some people think that this is related to milk containing enough tyrosine.
Vitamins
Animal experiments confirmed that vitamin A can inhibit many malignant tumors in mice and mice caused by carcinogenic aromatic hydrocarbons or other carcinogens. Vitamin C can inhibit the combination of nitrite and amines into nitrosamines. If vitamin C is added to foods, it can prevent the synthesis of nitrosamines during storage and processing.
Inorganic salt
Lack of certain trace elements is also easy to get cancer.
2. Dietary Additives and Cancer
Some food additives also have a carcinogenic effect. In the past, the pigment yellow cream and the sweetener cyclohexylamino carbonate which had been used for a long time in foreign countries have been confirmed to have carcinogenic effects in animal experiments and have been banned. Fish and cooked meat products generally need to add nitrates and nitrites to dye and inhibit bacterial growth, and they are the important components of the synthetic carcinogen nitrosamines.
3. Dietary pollutants and cancer
Japan is the country with the highest incidence of gastric cancer. According to 1976 statistics, 45 out of every 100,000 people died of stomach cancer. Recent studies suggest that it is associated with the general consumption of talc- and glucose-treated rice in the country, and it is estimated that there are approximately 3.7 million asbestos fibers per gram of talc, which is carcinogenic. Iceland is another country with high incidence of gastric cancer. According to analysis, it is closely related to the local residents' preference for smoked salmon, eel and meat. Smoked foods contain relatively high polycyclic hydrocarbons such as 3,4 benzopyrene.
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