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DESCRIPTION: Different brands of liquid smoke flavorings have been tested for DNA-damaging potential, p53 activation, and levels of known carcinogens. Smoked foods such as ham, turkey, barbeque chicken, herring, and salmon were also tested.

I've touched on those cooked meat carcinogens before. In Estrogenic Cooked Meat Carcinogens (http://nutritionfacts.org/video/estrogenic-cooked-meat-carcinogens/) I explored the role of these cooked meat chemicals in tumor growth. PhIP: The Three Strikes Breast Carcinogen (http://nutritionfacts.org/video/phip-the-three-strikes-breast-carcinogen/) explored their role in cancer invasion. Reducing Cancer Risk In Meateaters (http://nutritionfacts.org/video/reducing-cancer-risk-in-meateaters/) offered some mediation strategies. Heterocyclic Amines in Eggs, Cheese, and Creatine? (http://nutritionfacts.org/video/heterocyclic-amines-in-eggs-cheese-and-creatine) showed how even vegetarians may be at risk and Cancer, Interrupted: Green Tea (http://nutritionfacts.org/video/cancer-interrupted-green-tea/) and Cancer, Interrupted: Garlic & Flavonoids (http://nutritionfacts.org/video/cancer-interrupted-garlic-flavonoids/) explored some counter measures.

Some of these compounds can be a concern even if you don't eat them. See Meat Fumes: Dietary Secondhand Smoke (http://nutritionfacts.org/video/meat-fumes-dietary-secondhand-smoke/). Even the smell of frying bacon may be carcinogenic: Carcinogens in the Smell of Frying Bacon (http://nutritionfacts.org/video/carcinogens-in-the-smell-of-frying-bacon/).

Some plant foods exposed to high temperatures may also present a concern. See Is Yerba Mate Tea Bad for You? (http://nutritionfacts.org/video/is-yerba-mate-tea-bad-for-you/), and Acrylamide in French Fries (http://nutritionfacts.org/video/acrylamide-in-french-fries-2/). What about Carcinogens in Roasted Coffee? (http://nutritionfacts.org/video/carcinogens-in-roasted-coffee/).

The broccoli liver enzyme boost story is covered in The Best Detox (http://nutritionfacts.org/video/the-best-detox/).

Have a question for Dr. Greger about this video? Leave it in the comment section at http://nutritionfacts.org/video/is-liquid-smoke-flavoring-carcinogenic/ and he'll try to answer it!