tobacco that is sniffed or chewed What Snuff? – Bull Brand Chemical and toxicological characteristics of

"People can be reluctant to move into an oral tobacco product if they view it as similar to traditional chewing tobacco," company spokesman Corey Henry said

The spermatogenesis (sperm maturity process) takes between 64 and 74 days to produce mature, healthy sperm

Marchetti F, Rowan-Carroll A, Williams A et al (2011) Sidestream tobacco smoke is a male germ cell mutagen

A key advisory committee warned the Food and Drug Administration Wednesday that little is known about the health effects of so-called modified-risk tobacco products, suggesting makers of smokeless tobacco and other alternatives to conventional cigarettes face high hurdles before they can market them as less harmful