science

A 24-week randomised trial funded by Altria found that adult smokers who switched to on! nicotine pouches had significantly less gum inflammation, bleeding, and tooth staining than those who kept smoking. Every author is an Altria employee or paid consultant — so the caveats matter as much as the results.

science

A review in Nature Reviews Cardiology maps a hierarchy of vascular harm across every nicotine product. Nicotine pouches sit at the bottom — least harmful among nicotine products — but impair endothelial function, raise oxidative stress and arterial stiffness, and have no long-term outcome data.

science

A peer-reviewed case series in BMC Oral Health documents two young men who developed receding gums and a white oral patch — leukoplakia — at the exact spot where they habitually parked their nicotine pouches. It is the first published clinical case report of leukoplakia associated with pouch use, though the lesion was never biopsy-confirmed.

science

A cross-sectional study of 42 male DZRT nicotine pouch users at King Abdulaziz University in Saudi Arabia found that over half had oral mucosal lesions, but lesion severity was not significantly associated with how long they had been using pouches. The study was small and underpowered, and 80% of users had been using for under a year.

science

A University of Gothenburg randomized crossover study found that dental plaque acidogenicity — a key cavity-risk marker — decreased over six weeks when snus users switched to ZYN nicotine pouches, even though cavity-causing bacteria levels went up.

science

A Karolinska Institutet and Folktandvården Stockholm clinical study of 272 young adults found that nicotine pouches cause more redness and ulcers than traditional snus, while snus causes more tissue thickening. Every ulcer seen in the study was in a pouch user.

science

Nicotine pouch cans label strength in milligrams per gram, milligrams per pouch, or vague terms like “extra strong.” A pouch labelled 20 mg/g holds 14 mg per pouch, not 20. Here’s why the labels are inconsistent, what science says about actual nicotine content, and how regulators are starting to fix it.

science

Three University of Gothenburg studies found adolescents who use nicotine — including tobacco-free nicotine pouches — report more anxiety and depression symptoms, with girls particularly vulnerable. A companion rat study showed nicotine altered the amygdala, most pronounced in females.

science

A BAT-funded study in BMC Chemistry measured 132 chemicals across 11 nicotine pouches, two snus products and cigarette-smoke data. Pouches came out with fewer detectable toxicants and over 90% lower levels than snus in most tests — but nine of the pouches tested were Velo, made by the funder.

science

A peer-reviewed review in Frontiers in Oral Health finds nicotine pouches remove the combustion that drives smoking-related oral cancer, but no long-term data exists to say what they mean for cancer risk. A separate UK dental-team update flags mucosal lesions and gum recession among users.

science

The first Cochrane review of oral nicotine pouches as a quitting aid found only four tiny studies covering 284 people — and rated its confidence in the findings as 'very low'. Here's what we actually know.

science

Professor Kerstin Brismar of Karolinska Institutet says the surge in white snus use among young women may be driving the parallel rise in type 2 diabetes. She expects confirming research soon.

wellbeing

Athletes increasingly use nicotine pouches hoping for a performance edge, but a new systematic review finds zero evidence they help—and substantial health risks.