Chewing tobacco linked to 250,000 deaths in a single year, global study finds

**Lead**

A landmark study that harnessed sophisticated data analytics and machine learning algorithms has revealed that chewing tobacco was responsible for approximately 250,000 deaths globally in a single year. The research, which synthesised health records from dozens of countries, underscores a persistent public health threat that technology is now being deployed to combat — from smartphone-based cessation apps to AI-powered surveillance of tobacco product sales.

**Context**

Chewing tobacco, a smokeless form of tobacco consumed orally, has long been known to cause oral cancers, oesophageal cancer, and cardiovascular disease. Yet its global toll has been difficult to quantify due to inconsistent reporting and the fragmented nature of health data in many regions. The new study used a combination of national mortality registries, hospital discharge data, and survey-based prevalence estimates, feeding them into a statistical model that accounted for under-reporting and demographic differences. The result: an estimated 250,000 deaths attributable to chewing tobacco in the most recent year analysed.

While the figure is global, the study’s authors noted that the burden falls disproportionately on low- and middle-income countries, particularly in South Asia and parts of Africa, where chewing tobacco products such as gutka, pan masala, and snus are widely used. In the United Kingdom, chewing tobacco is less prevalent than smoking, but its use persists among certain communities, including South Asian diaspora populations and younger adults experimenting with nicotine pouches. Public Health England has previously warned that smokeless tobacco products are not a safe alternative to cigarettes, and the new data reinforces that message.

**Analise**

The significance of this study extends beyond the raw mortality count. It demonstrates how technology — specifically, large-scale data integration and predictive modelling — can illuminate hidden health crises. Traditional epidemiological methods often struggle to capture the impact of products that are not tracked through routine sales or prescription data. By applying machine learning to patchy datasets, researchers were able to produce estimates that are far more reliable than earlier attempts. This methodological advance could be applied to other understudied risk factors, such as e-cigarette use or novel nicotine delivery systems.

For the UK, the findings carry a clear technological imperative. The National Health Service (NHS) and local authorities already invest in digital smoking cessation tools, but most are designed for cigarette smokers. Chewing tobacco users have different behavioural patterns and cultural contexts, meaning generic apps may be ineffective. A number of UK-based startups are now developing culturally tailored mobile interventions, using natural language processing to offer personalised advice in languages such as Gujarati, Punjabi, and Bengali. Meanwhile, the Medicines and Healthcare products Regulatory Agency (MHRA) is exploring the use of AI to monitor adverse events linked to smokeless tobacco products, potentially flagging dangerous batches before they cause widespread harm.

**Analise (continued)**

Beyond direct health interventions, technology is reshaping the regulatory landscape. The study’s data could inform the UK government’s upcoming Tobacco and Vapes Bill, which is expected to tighten restrictions on all nicotine products. Advanced analytics allow policymakers to simulate the effect of different tax levels, age restrictions, or packaging requirements on chewing tobacco consumption — a far cry from the blunt instruments of the past. However, critics warn that technology alone cannot solve the problem. The root causes of chewing tobacco use — poverty, lack of education, and aggressive marketing by manufacturers — require social and economic solutions that no app can provide.

Nevertheless, the study serves as a powerful reminder that data-driven public health is not a luxury but a necessity. As the UK moves towards a smoke-free generation by 2030, the 250,000 deaths attributed to chewing tobacco globally each year should galvanise investment in both research and digital tools. The technology sector has a clear role to play, from improving surveillance to delivering cessation support, and the new findings provide the evidence base to justify that investment.

**Fontes**

- Global analysis of mortality data from national health registries and surveys, conducted by an international consortium of researchers. - Public Health England reports on smokeless tobacco. - UK Government Tobacco and Vapes Bill proposals. - NHS Digital Smoking Cessation Services data.