Cancer comes from the mouth. This is how you get cancer.

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 caused by what we eat. What are the common carcinogenic foods in our lives?

1. Dietary Inherent Components and Cancer

Nitrosamines

It is a strong carcinogen. According to analysis, the positive detection rate of nitrosamines in food in areas with a low incidence of esophageal cancer is only 0-1.2%, while in Lin County, Henan Province, a high incidence area, it is as high as 23.3%-33.3%. Further analysis showed that the grain in Lin County contained a large amount of precursors of nitrosamines, such as nitrates and nitrites. These compounds can combine with secondary amines in the stomach of humans or animals to synthesize nitrosamines.

Fat

Some people abroad analyzed the stool of four groups of people: Americans who eat a high-fat diet, Japanese who have just immigrated to the United States, Chinese, and strict vegetarians. They found that the metabolites of bile acid, cholesterol metabolites, and the activity of bacterial β-glucuronidase in the stool of the first group of Americans were significantly higher than those of the other three groups. The structure of bile acid and certain neutral sterols in cholesterol metabolites are very similar to carcinogenic polycyclic aromatic hydrocarbons, and anaerobic bacteria in the intestinal cavity play a role in fueling the process of colorectal cancer.

protein

Medical scientists have found that in capitalist countries, the incidence of gastric cancer is higher among the poor than among the rich. Some people then further investigated the relationship between milk and gastric cancer. They divided those who did not drink milk, drank milk sometimes, drank 180 ml per day, and drank more than 360 ml per day into four groups, and calculated the relative risks of gastric cancer, which were 1.0, 0.77, 0.45 and 0.2 respectively. In Japan and Chile, where gastric cancer is prevalent, the incidence of gastric cancer has decreased in recent years as the amount of milk consumed has increased. Some people believe that this is related to the fact that milk contains sufficient tyrosine.

Vitamins

Animal experiments have confirmed that vitamin A can inhibit various malignant tumors in mice and rats caused by carcinogenic aromatic hydrocarbons or other carcinogens. Vitamin C can inhibit the combination of nitrite and amines to form nitrosamines. If vitamin C is added to food, it can prevent the synthesis of nitrosamines during storage and processing of food.

Inorganic salt

Lack of certain trace elements can also make you more susceptible to cancer.

2. Dietary Additives and Cancer

Some food additives also have carcinogenic effects. The pigment cream yellow and the sweetener cyclohexylaminocarbonate, which were used for a long time in foreign countries in the past, have been confirmed to be carcinogenic in animal experiments and are now banned. Fish and cooked meat products generally require the addition of nitrates and nitrites for coloring and inhibiting bacterial growth, and they are the important components of the synthetic carcinogen nitrosamines.

3. Dietary pollutants and cancer

Japan has the highest incidence of gastric cancer. According to statistics in 1976, 45 people died of gastric cancer for every 100,000 people. Recent studies have linked this to the country's widespread consumption of rice treated with talc and glucose, with an estimated 3.7 million asbestos fibers in each gram of talc, which is carcinogenic. Iceland is another country with a high incidence of gastric cancer. According to analysis, this is closely related to the local residents' preference for eating smoked salmon, trout and meat. Smoked foods contain relatively high levels of polycyclic hydrocarbons, such as 3, 4-benzopyrene.