A new study published in the journal Addiction Found that nicotine e-cigarettes are more effective for smoking cessation than traditional methods such as nicotine patches or gum. Oxford researchers aim to debunk claims that the evidence is mixed; Their meta-analysis shows clear and consistent data supporting e-cigarettes as a successful aid to smoking cessation. A 2024 review stated that an additional 2 to 5 out of every 100 people successfully quit smoking when using e-cigarettes compared to other replacement therapies.
Although it is not risk-free, switching from combustible tobacco to e-cigarettes significantly reduces exposure to cancer-causing chemicals. In this regard, Angela Defeng Wu, senior researcher and lecturer in the Nuffield Department of Primary Care Health Sciences at Oxford, said: “We hope that this overview and evidence and gap map can put to rest some claims that the evidence is mixed regarding the effects of nicotine e-cigarettes on smoking abstinence.”
Health risks and scientific shortcomings
Despite a reduction in toxins compared to tobacco, a February 2026 study confirmed that vapers are still exposed to carcinogenic chemicals. Because e-cigarettes are relatively new and constantly changing, long-term health effects remain both evolving and undecided. Furthermore, the Oxford review found that current data is still insufficient to draw firm conclusions regarding serious health complications.
Global concerns and impact on children
The World Health Organization (WHO) remains a vocal critic, arguing that these products are exposing children to nicotine and undermining years of tobacco control progress. Projections to 2025 show more than 100 million vapers globally, including 15 million children aged 13–15 years. Ongoing controversies and perceived uncertainties continue to hinder international health policies and individual clinical decisions.
