A new study from Duke University suggests that some e-cigarette and smokeless tobacco products could contain high levels of carcinogen.
The data was released in the JAMA Internal Medicine Journal on Monday.
Researchers tested for levels Pulegone, a chemical found in regular cigarettes.
The FDA banned the chemical as a food additive last year because it could cause cancer.
Overall, researchers found the mint and menthol-flavored e-cigarette liquids and smokeless tobacco products contained substantial amounts of the chemical.
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