No way. Might be sharing a few chemicals, but they are nothing alike.
In terms of health risks, I would believe they are. Never tried sniffing snuff, but I would think the effect is somewhat similar to snus.
Health risks i wouldnt know. TBH ive never heard of any special health risks with snus except jaw structure collapsing. Sniff does not have the same effect in any way. Atleast not the stuff ive tried.
You may be right about the effects of snuff, Tarj. Never tried it myself, just thought that the idea was to let the nicotine to kick in.
Health risks connected to snus is an interesting discussion with no definitive answers yet. It is widely accepted as far less damaging than cigarettes, though, and no increased risks of cancer have been proven so far. If it were up to me, smokers would be adviced by health authorities to switch to snus.