Snus
Snus is a heat-treated moist snuff tobacco product originating from Sweden in the early 19th century, composed primarily of ground air-cured tobacco leaves, water, salt, and sometimes sodium carbonate, formed into loose or portioned pouches placed under the upper lip for nicotine absorption without combustion or spitting.[1][2] Developed from earlier forms of oral snuff dating back to the 16th century, snus gained prominence in Sweden during the 20th century, with consumption peaking in the early 1900s before stabilizing; today, daily use among Swedish men stands at approximately 22%, while female use is around 4%, contributing to a parallel decline in cigarette smoking prevalence from higher levels in prior decades to about 6% recently.[3][4][5] Empirical analyses indicate that snus substitution for smoking has averted thousands of premature deaths annually in Sweden by reducing exposure to smoke-related carcinogens.[6] Multiple studies demonstrate that snus poses substantially lower risks for key health outcomes—such as lung cancer, cardiovascular disease, and overall mortality—compared to cigarette smoking, though it is not risk-free and carries associations with oral and pancreatic cancers at elevated but diminished levels relative to combustible tobacco.[7][8][9] Legally, snus remains uniquely permitted for sale in Sweden within the European Union due to a protocol exemption upon accession, while banned elsewhere in the EU since 1992 despite evidence of its harm-reduction potential, reflecting regulatory divergences prioritizing precautionary bans over comparative risk assessments.[10][11]