The UK's National Centre for Smoking Cessation and Training, which provides training and accreditation to NHS "stop smoking practitioners", issued a new guideline downplaying concerns about e-cigarettes and stating that smoking cessation professionals should support e-cigarette users, although they remained unable to prescribe e-cigarettes. The Royal College of Physicians (RCP) released a statement recognising that e-cigarettes "could make harm reduction a reality for smokers" and that they "can provide an effective, affordable and readily available retail alternative" to traditional forms of tobacco. They noted that the products presented potential risks in addition to benefits and therefore advised appropriate regulation in order to "maximise the overall public health benefit". In summary, the RCP stated that, "On the basis of available evidence, the Royal College of Physicians believes that e-cigarettes could lead to significant falls in the prevalence of smoking in the UK, prevent many deaths and episodes of serious illness, and help to reduce the social inequalities in health that tobacco smoking currently exacerbates." In the US the Food and Drug Administration (FDA) concluded, "E-cigarettes have not been fully studied, so consumers currently don’t know: the potential risks of e-cigarettes when used as intended, how much nicotine or other potentially harmful chemicals are being inhaled during use, or whether there are any benefits associated with using these products. Additionally, it is not known whether e-cigarettes may lead young people to try other tobacco products, including conventional cigarettes, which are known to cause disease and lead to premature death.”