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A 33-year-old member asked:

What causes chewing tobacco to cause cancer but chewing, let's say, maple leaves doesn't?

1 doctor answer3 doctors weighed in
Dr. Ramji Rajendran
Radiation Oncology 16 years experience
Chewing tabacco: Chewing tabacco has many known carcinogens. Betel nut chewing has also been linked to carcinogenesis.

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A 44-year-old member asked:

What causes chewing tobacco to cause cancer (i still don't understand why)?

1 doctor answer1 doctor weighed in
Dr. Edward Kuhnley
Child Psychiatry 45 years experience
Carcinogens: At least 28 chemicals (carcinogens) in smokeless tobacco can cause cancer. The most harmful chemicals are tobacco-specific nitrosamines, which are formed during the growing, curing, fermenting, and aging of tobacco. The level of nitrosamines varies by product and scientists have found that the nitrosamine level is directly related to the risk of cancer.

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Last updated Jan 29, 2017

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