 በአለም የጤና ድርጅት የተደረገ ጥናት እንደሚያሳየው በፈረንጆቹ 2002 ዓመተምህረት ብቻ በአለማችን ላይ በካንሰር የተያዙ ሰዎች ቁጥር 10.
According to a 2007 study by the World Health Organization's International Agency for Research on Cancer, there are upwards of 28 cancer-causing chemicals in smokeless tobacco that are known to cause cancer.