Study: Smokeless Tobacco More Carcinogenic Than Cigarettes

Study: Smokeless Tobacco More Carcinogenic Than Cigarettes...Fox News reported on August 10, 2007 that in a study comparing 182 chewing tobacco or oral snuff users with 420 cigarette smokers, the Minnesota researchers found that snuff users were exposed to higher levels of 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) than smokers. NNK is a human carcinogen known to produce lung cancer as well as cancers of the pancreas, nasal mucosa and liver in laboratory animals. “Smokeless tobacco products have been proposed by some as safer alternatives to cigarettes, but they are not safe,” said author Stephen S. Hecht, Ph.D., professor of cancer prevention at the University of Minnesota Cancer Center, in a news release. “The only likely safe alternative to smoking is the long term use of nicotine replacement therapy as a means to reduce dependence.” The study participants included men and women aged 17 to 80 who had sought – but had yet to begin – treatment for tobacco addiction, and who used conventional, popular U.S. brands of smokeless tobacco.

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