A recent review concerning the health impact of e-cigearettes, from a non-profit group specialising in examining the evidence from healthcare studies, have conc luded that e-cigarettes may assist in quitting smoking. Other conclusions from the review indicate that they may also lead to changes in the blood and breath that are similar to giving up smoking, without serious side effects within the first two years of use. The lead author of the review also comments on the validity of the review compared to other studies.

Key Takeaways:

• Scientists can’t seem to agree on the benefits or harms of e-cigarettes
• Some studies suggest e-cigarettes help in quitting tobacco, whereas some studies suggest they make it harder.
• Cochrane review found 26 studies in the pipeline that will help answer questions about the safety and effect of using e-cigarettes to quit smoking.

“overall the evidence suggests that (1) e-cigarettes with nicotine can help people quit smoking”

https://www.theguardian.com/science/sifting-the-evidence/2016/sep/14/why-cant-scientists-agree-on-e-cigarettes-vaping