Smokeless tobacco (snus) is associated with an increased risk of type 2 diabetes: results from five pooled cohorts
Abstract
Background: Smoking and nicotine exposure increase insulin resistance and the risk of type 2 diabetes. Swedish smokeless tobacco (snus) is high in nicotine, and its use is prevalent in Scandinavian countries, but few studies have investigated snus use in relation to diabetes risk. Objective: To explore the association between snus use and risk of type 2 diabetes using pooled data from five cohorts. Methods: Analyses were based on prospective studies conducted between 1990 and 2013 including 54 531 never‐smoking men and 2441 incident cases of type 2 diabetes identified through screening, self‐reporting and hospital and prescription registries. Hazard ratios (HR s) and 95% confidence intervals (CIs) were assessed and adjusted for age, body mass index, educational level, alcohol consumption and physical activity. Results: Compared to never users, the HR of type 2 diabetes was 1.15 (95% CI: 1.00–1.32) in current users of snus. In individuals consuming 5–6 boxes per week, the HR was 1.42 (95% CI: 1.07–1.87); in those consuming ≥7 boxes per week, the HR was 1.68 (95% CI: 1.17–2.41). Each additional box of snus consumed per week yielded an HR of 1.08 (95% CI: 1.01–1.16). Conclusion: Our findings indicate that high consumption of snus is a risk factor for type 2 diabetes. The risk was similar to that in smokers, implying that smokers will not reduce their risk of type 2 diabetes by changing to snus use. The results also support the notion that nicotine increases the risk of type 2 diabetes.
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Among male current snus users compared to never-users, there is increased risk of diabetes type 2 (HR = 1.15; 95% CI: 1.00-1.32).
“increased risk of diabetes type 2 (HR = 1.15; 95% CI: 1.00-1.32) in male current snus users compared to never-users (Carlsson et al. 2017).”
From Comparison of the Health Effects Associated with the Use of Snus and Tobacco-Free Oral Nicotine Pouches: A Systematic Review (2026) · cites this paper as Carlsson et al. 2017
Male current snus users had an increased risk of diabetes type 2 (HR = 1.15; 95% CI: 1.00-1.32) compared to never-users.
“Increased risk of diabetes type 2 (HR = 1.15; 95% CI: 1.00-1.32) in male current snus users compared to never-users(Carlsson et al. 2017)”
From Comparison of the Health Effects Associated with the Use of Snus and Tobacco-Free Oral Nicotine Pouches: A Systematic Review (2026) · cites this paper as Carlsson et al. 2017
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Cited by
Sorted by citations
Kopa-Stojak, P. N., & Pawliczak, R. (2026) · Exposure and Health · doi:10.1007/s12403-026-00812-w
- Authors
- Carlsson, S., Andersson, T., Araghi, M., Galanti, R., Lager, A., Lundberg, M., Nilsson, P., Norberg, M., Pedersen, N. L., Trolle‐Lagerros, Y., & Magnusson, C.
- Venue
- Journal of Internal Medicine
- Publisher
- Wiley
- Published
- 2017-02-06
- Volume
- 281
- Issue
- 4
- Pages
- 398-406
- ISSN
- 0954-6820
- 1365-2796
- Cited by
- 56
- References
- 2
- Language
- en
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