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Thursday, March 30, 2023

Is it true that grilling meat can cause cancer?

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question 253 Westend61/Getty Images“question 253 Westend61/Getty Images

If you have read the HowStuffWorks article How Cancer Works, then you know that there are many different things that can cause cancer. You would think that cooking meat over an open flame would not be one of those things, given that people have been cooking meat this way going all the way back to the caveman days. Unfortunately, it does appear that grilling, broiling or frying meat produces substances that have a connection to cancer.

Heat has a general property of allowing chemicals to change from one form to another. You see this happen whenever you cook an egg — the heat changes the proteins in the egg and solidifies them. In the case of meat, high temperatures convert things like fat in the meat into substances called polycyclic aromatic hydrocarbons. Polycyclic aromatic hydrocarbons are groups of benzene rings, and, like benzene itself, these rings can be modified in the body to produce chemicals that damage DNA. According to Encyclopedia Britannica:

Under conditions of biological oxidation by the cytochrome P-450 enzyme system in the liver, benzene and polycyclic aromatic hydrocarbons undergo epoxidation of their ring. The epoxides that form react with deoxyribonucleic acid (DNA), and it is believed that this process is responsible for the carcinogenic properties of polycyclic aromatic hydrocarbons.

How much of a risk does well-done meat present? According to this article, "For the age groups that we’re studying, the rate at which women who eat well-done meat are developing breast cancer is nearly five times greater than the rate among women who are not cooking their meat well-done." So it seems that there is a noticeable difference.

If you want to avoid these risks entirely, boiling meat is a good way to prepare it…

These links will help you learn more:

  • How Cancer Works
  • Link Between Well-Done Meat and Breast Cancer Explored – September 2000
  • Health experts advise caution when grilling meats – June 1999
  • Cancer & Over-Cooked Meat – November 1998
  • Grilling and Cancer Risk – October 1996
  • American Institute for Cancer Research
  • Fit Tips: Barbecue Cooking


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