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Cancer is a disease that can be caused by hereditary and environmental factors. While some people develop cancer regardless of steps taken to prevent it, there is evidence that limiting the consumption of some foods could prevent or delay the onset of cancer, especially for those with a known family history of cancers of the digestive system. Cancer-promoting foods are typically rich in refined sugars, processed carbohydrates, preservatives and by-products of deep-frying. Many of these foods also have harmful effects on health in general, effecting the cardiovascular, nervous and reproductive systems. These cancer-causing foods can contribute to the development of diabetes, obesity and heart disease.
If you are experiencing serious medical symptoms, seek emergency treatment immediately.
Food sources high in refined sugars such as sweetened beverages, sodas and many juices can increase cancer risk. A 2010 study in the journal "Cancer Epidemiology, Biomarkers & Prevention" shows that individuals who consume two or more servings of soda per week have an 87 percent higher chance of developing pancreatic cancer compared to individuals who do not consume soft drinks 1. Other studies have shown links between sugar consumption and cancers of the stomach and colon. While sugar itself does not directly turn healthy cells into cancer, it is the preferred food source for cancerous cells and helps to promote tumor growth during the tumor formation process. Over time, a heavy sugar intake can also increase overall metabolic output of cells, increasing the amount of oxidative by-products that are produced and released into their environment.
- Food sources high in refined sugars such as sweetened beverages, sodas and many juices can increase cancer risk.
- Over time, a heavy sugar intake can also increase overall metabolic output of cells, increasing the amount of oxidative by-products that are produced and released into their environment.
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Fried foods increase one's risk of developing cancer, especially when they contain hydrogenated oils, trans-fats, and a by-product of the deep-frying process called acrylamide. Acrylamide is a well- known tumor causing agent and also a potent neurotoxin, having adverse effects not only on the brain, but on the reproductive system as well. High carbohydrate foods such as potatoes readily produce acrylamide during the frying process. This places many fried potato products such as french fries, tater tots, potato chips and hash browns high on the list of cancer-causing foods.
- Fried foods increase one's risk of developing cancer, especially when they contain hydrogenated oils, trans-fats, and a by-product of the deep-frying process called acrylamide.
Doughnuts are the culmination of three major classes of cancer causing foods; they are deep-fried, contain high levels of sugars and are based on heavily refined carbohydrates. The combination of by-products from the frying process together with heavy amounts of sugar and processed flour make doughnuts particularly risky to those hoping to reduce cancer risk.
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Preserved, cured or pickled meats are a known risk factor in stomach cancer and other malignancies of the digestive system. Such meats are even more dangerous when ingredients such as sodium nitrate, a key preservative in hot dogs and other meat products is added into the mix. Hot dogs and other preserved, salted meats such as bacon or bologna should be consumed in moderation or avoided, especially for those at risk for stomach cancer.
When organic plant or animal matter is burned, a number of toxic, mutagenic by-products are formed. Many of these by-products are exactly the same as those produced in the burning of tobacco that accounts for the toxic and cancer promoting effects of cigarettes. According to the National Cancer Institute, cancers of the colon, stomach and other digestive system malignancies are associated with high intake of charred or burned meats. While this effect has not yet been rigorously established for other burned foods such as burnt toast, the same effect is possible.
- When organic plant or animal matter is burned, a number of toxic, mutagenic by-products are formed.
- Many of these by-products are exactly the same as those produced in the burning of tobacco that accounts for the toxic and cancer promoting effects of cigarettes.
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- Soft Drink and Juice Consumption and Risk of Pancreatic Cancer
- Minireview on the toxicity of dietary acrylamide
- Anand P, Kunnumakkara AB, Sundaram C, et al. Cancer is a preventable disease that requires major lifestyle changes. Pharm Res. 2008;25(9):2097–2116. doi:10.1007/s11095-008-9661-9
- Falzone L, Marconi A, Loreto C, Franco S, Spandidos DA, Libra M. Occupational exposure to carcinogens: Benzene, pesticides and fibers. Mol Med Rep. 2016;14(5):4467–4474. doi:10.3892/mmr.2016.5791
- American Cancer Society. Viruses that can lead to cancer. Updated July 11, 2016.
- National Cancer Institute. Age and Cancer Risk. Updated April 29, 2015.
- American Cancer Society. Cancers that Develop in Children. Updated August 22, 2016.
- American Cancer Society. Genetics and Cancer.
- American Cancer Society. Family Cancer Syndromes. Updated January 4, 2018.
- Centers for Disease Control and Prevention. Morbidity and Mortality Weekly Report (MMWR): Surveillance for Cancers Associated with Tobacco Use - United States, 2010-2014. Updated November 1, 2018.
- American Cancer Society. Alcohol Use and Cancer. Updated April 5, 2017.
- American Cancer Society. Exercise Linked With Lower Risk of 13 Types of Cancer. Updated May 17, 2016.
- American Cancer Society. Does body weight affect cancer risk? Updated January 4, 2018.
- Siegel RL, Miller KD, Jemal A. Cancer statistics, 2019. CA Cancer J Clin. 2019;69(1):7-34.doi:10.3322/caac.21551
- American Cancer Society. What Causes Cancer?
- American Cancer Society. Cancer Facts & Figures.
- National Cancer Institute. Risk Factors for Cancer.
Chad Stone is a medical scientist based in the Pacific Northwest. Since 2003, Dr. Stone has has published high-profile articles on the molecular mechanisms of cardiovascular disease and cancer in journals such as Blood and the Journal of the American Heart Association. Dr. Stone is a specialist in blood biology as well as cancers of breast, colon, kidney and other tissues.