> Some studies have suggested that e-cigarette use can be modestly helpful for smokers trying to quit. For example, an analysis of 61 studies found that e-cigarette use was more effective than other approaches to quitting smoking. The study authors estimated that out of every 100 people who tried to quit smoking by vaping, nine to 14 might be successful. When only using other methods, such as nicotine patches or behavioral counselling, only four to seven smokers out of 100 might quit. A separate study suggests vaping may help smokers who aren’t able to quit reduce the number of cigarettes smoked per day — at least for six months, the duration of the study.
Doubling the chances people can effectively stop smoking is no good for profits.
Source: https://www.health.harvard.edu/blog/can-vaping-help-you-quit...