Fact
An average of 4.5mg of nicotine is absorbed from 7.9g of chewing tobacco and an average of 3.6mg of nicotine is absorbed from 2.5g moist snuff.
Source 1:
Severson, H.H. "What Have We Learned From 20 Years of Research on Smokeless Tobacco Cessation?" American Journal of Medical Sciences. 326(4). Oct. 2003: 206-211. Web.