Whether you call it chewing tobacco, snuff, quid, chaw, plug, or spit tobacco, all forms of smokeless tobacco are still tobacco. Tobacco, whether it comes in a cigarette pack, or in a little round tin, contains nicotine and other toxic substances.
Smokeless tobacco is addictive.
The two types of chewing tobacco are regular chewing tobacco and snuff. Chewing tobacco is leaf tobacco which is placed between the cheek and teeth. Snuff is finely ground tobacco which is placed between the cheek or lower lip and the gum. TV, billboard, and magazine ads would have us believe that smokeless tobacco is safe and socially acceptable. This just isn't true.