Well, Polosa et al. have conducted exactly such a . They examined the changes in asthma symptoms among smokers who continue to smoke versus those who switch to electronic cigarettes. These investigators reported that in contrast to real cigarettes, the fake ones result in actual harm reversal. Lung function, asthma control, and asthma symptoms were significantly improved among patients who switched from regular cigarettes to electronic cigarettes. These improvements were even observed among patients who became dual users of both real and fake cigarettes.

What the FDA is stating is that it does not believe that it would be any worse for individual X to resume cigarette smoking than for her to remain an ex-smoker by continuing to vape. The FDA is stating that it is aware of no evidence to suggest that returning to cigarette smoking would be an unwise decision for this individual.

Not only does this column provide bad medical advice, but the advice itself is based on misinformation. For example, the article claims that e-cigarettes have been shown to be a gateway to smoking: "Most dangerous of all is the appeal to children. Vapor is less irritating than smoke, and comes in flavors such as bubble gum, cola and chocolate. Some children who would not try regular cigarettes will be tempted by e-cigarettes. As soon as they start, they will become addicted to nicotine and suffer from the health effects and expense of that addiction. Others who start with e-cigarettes will go on to use real cigarettes, and face the deadly diseases they cause."

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