If you look around the Internet or even request information from professional health organizations on how to quit smoking you are likely to find that the standard advice that will be given is to use a pharmacological approach, i.e., nicotine replacement products and or Zyban. Every time you see this advice you will constantly hear that these approaches double your chances of quitting. Some sites and groups come out and almost say point blank do not go cold turkey--basically leaving the reader with the impression that nobody could possibly quit this way.
In the 2003 American Cancer Society's Facts and figures (2003 Cancer Facts and Figures) there is the following chart that shows the percentage of current smokers who have tried different routes at quitting smoking and also showed what percentage of current ex-smokers who quit by different techniques.
The numbers that were very telling were the percentages that broke down how former smokers had actually quit. Keep in mind this chart is limited, it does not tell us how long they have quit or some other key pieces of information--like did the people who are using quitting aids such as NRT ever actually got off the NRT. But I am not concerned about that at this moment.
So how did former smokers actually quit according to the American Cancer Society report? Those using drug therapies and counseling, 6.8%. Those using other methods, 2.1%. That leaves those who either went cold-turkey or cut down. It seems that the study authors didn't feel a need to separate these two unimportant methods, but since even they generally admit cutting down techniques do not really work, I think we can safely assume that they didn't really have any major impact on the overall number. So basically 91.4% of the people who are successfully classified as former smokers quit cold turkey. On that same page is the following recommendation:
"All patients attempting to quit should be encouraged to use effective pharmacotherapies except in the presence of specific contraindications."
You have to ask yourself how many of the successful ex-smokers in the world today would have actually succeeded if the sought out and listened to professional advice.
So for anyone looking in trying to determine what is the best way to quit, you have a choice. You can go with the experts or you can go with what over 90% of successful quitters have done. If you decide to go with the quitters all you need to do is to never take another puff!