Across 10 first-hand reports, people mentioned a side effect 7 times (about 70 per 100 reports). The most common: addiction, hiccups, dependence. User reports show what people notice — they can't tell you whether Snus is safe for you.
“While it does help with focus it's a double edged sword. When I don't have snus and try studying it's absolutely miserable and I notice a decline in concentration.”
“Snus. I started too high and nearly had a panic attack at a gas station in the middle of the night.”
“only snus was able to absorb quickly enough to put me in a daze and give me the worst hiccups ever”
Conclusion: An increased risk of cancer of the esophagus, pancreas, stomach and rectum as well as an association between use of snus and increased mortality after a cancer diagnosis was reported. Our confidence in the various risk estimates varied from moderate through low to very low.
Conclusion: A significant positive association was observed between SLT use and the risk of oral cancer, in SEAR, EMRs, and among women users.