Red stains of<unk>  on walls due to spitting Creative advertising by tobacco companies and lack of accessible information for the public leads to many<unk>  users being unaware of the dangers it can bring. Often users believe that<unk>  can act as a digestion aid, kill germs, and generally give a sense of well being. In fact 34.4% of smokers have switched to smokeless tobacco use as way to quit. In addition to cancer of the head, mouth, neck, throat, oesophagus, other aerodigestive tract cancers, and dental disease areca nut, the main ingredient in<unk>  is known to cause severe oral mucosal disorders. Oral submucous fibrosis, one such disorder, is a malignant condition that is severely debilitating and has no cure. Metabolic syndrome, hypertension, diabetes and obesity have also been linked to its use. Use by pregnant women increases the risk of low birth rates in newborns. As of 2015 it was the fourth most common addictive product worldwide. Areca nut "quid chewing has claimed to produce a sense of well being, euphoria, warm sensations of the body, sweating, salivation, palpitation and heightened alertness, tolerance to hunger, and increased capacity and stamina to work." When a person chews<unk> , the mixture directly enters the system through the oral cavity, which absorbs about 28 carcinogenic chemicals including nicotine. "Smokeless tobacco use is highly addictive. The nicotine in smokeless tobacco is more easily absorbed than by smoking cigarettes enhancing its addictiveness."<unk>  turns saliva bright red, and when it is chewed long and often enough it will stain a user's teeth bright red too. Saliva is generally spat onto a wall or at the ground, causing a red stain that is quite resistant to the elements. Some building owners have taken to combating this by painting murals of gods on their walls, with the idea that<unk> a chewers would not spit on a god.
Gutka
Zellballen
Konzo
Wart
Sultiame
Sofie 
Riken
Vinegar