Some years ago the tobacco companies tried to re-introduce chewing tobacco.

[sandyRoe]

Their campaign failed, not least because a report stated that using it could cause mouth cancers. Was it the nicotine, or something else in the tobacco, which was carcinogenic?

[Mick-Talbot]

Maybe chewing tobacco is the answer to the smoking ban.

Disgusting habit though.

[sandyRoe]

I'm using the more sanitized modern version of it. Niquitine 4mg tablets.

[Sqad]

sandy....I am not sure that the scientists know the carcinogenic substance in tobacco and nicotine has not been shown to be the agent.

Other chemicals called nitrosamines are likely culprits but here again research is still ongoing.

So in answer to your question.....I don't know.

Lazygun would be your best bet.

[Sqad]

Dragging up facts gleaned in my student days.....betel nut chewing certainly was associated with oral cancer and was particularly a habit with construction workers, fishermen and drivers......particularly if not totally in the Far East.

I have no idea what chemicals betel nuts contain, but lazygun will surely know.

[ABerrant]

I recall the failed attempt to introduce Skoal Bandit products during the latter half of the 1980s.

Many reports have been produced on the effects of smokeless tobaccos.

http://www.guardian.c...9/smoking.jamiedoward
http://en.wikipedia.org/wiki/Dipping_tobacco

[sandyRoe]

That's it, Skoal Bandits. They came in a container about the size of a small tin of polish.

[sandyRoe]

I believe the streets in parts of London are now stained with the residue of khat that's been spat out by users.
It couldn't do much good, either