There's no evidence e-cigarettes are as harmful as smoking | Science | The Guardianhttp://www.theguardian.com/science/sifting-the-evidence/2015/feb/23/theres-no-evidence-e-cigarettes-are-as-harmful-as-smoking
E-cigarettes are currently unlicensed, but both the National Institute for Health and Clinical Excellence and the Medicines Healthcare Regulatory Association acknowledge that their use is safer than continued smoking. This is not simply an opinion, it is an evidence-based statement, and one that is supported by tobacco control organisations in the UK. To imply otherwise is incorrect. This does not mean e-cigarettes are risk free, but few things are. What it does mean is that their use is safer than continued smoking.