Medical Review

Cancer Nutrition & Cancer-Fighting Foods

Cooking and carcinogens

Carcinogens are cancer-causing substances found in food. Carcinogens can form during the cooking or preserving process—mostly in relation to meat—and as foods start to spoil. Examples of foods that have carcinogens are cured, dried, and preserved meats (e.g. bacon, sausage, beef jerky); burned or charred meats; smoked foods; and foods that have become moldy. Here are some ways reduce your exposure to carcinogens:

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  1. Do not cook oils on high heat. Low-heat cooking or baking (less than 240 degrees) prevents oils or fats from turning carcinogenic. Instead of deep-frying, pan-frying, and sautéing, opt for healthier methods such as baking, boiling, steaming, or broiling.
  2. Go easy on the barbecue. Burning or charring meats creates carcinogenic substances. If you do choose to barbecue, don’t overcook the meat and be sure to cook at the proper temperature (not too hot).
  3. Store oils in a cool dark place in airtight containers, as they quickly become rancid when exposed to heat, light, and air.
  4. Choose fresh meats instead of cured, dried, preserved, or smoked meats.
  5. Avoid foods that look or smell moldy, as they likely contain aflatoxin, a strong carcinogen. Aflatoxin is most commonly found on moldy peanuts. Nuts will stay fresh longer if kept in the refrigerator or freezer.
  1. Be careful what you put in the microwave.Use waxed paper rather than plastic wrap to cover your food in the microwave. And always use microwave-safe containers.

Source: Physicians Committee for Responsible Medicine

Choose cancer-fighting foods

Your immune system keeps you healthy by fighting off unwanted invaders in your system, including cancer cells. There are many things you can eat to maximize the strength of your immune system, as well as many cancer-fighting foods. But keep in mind that there is no single miracle food or ingredient that will protect you against cancer. Eating a colorful variety gives you the best protection.