[8] A 2018 study funded by DOH Ireland set out with an objective to determine if Allen Carr's Easyway to Stop Smoking was superior to Quit.ie in a randomised clinical trial.

"[2] Subsequently more studies have been published which confirm the effectiveness and cost-effectiveness of the method [9] Pneumologist and tobacco addiction expert Bertrand Dautzenberg does not consider Allen Carr's Easyway to deal with evidence-based techniques.

[10] Furthermore, two randomised controlled trials formed part of the evidence which led to approval for Allen Carr's Easyway to Stop Smoking in-person Live Group Seminars use on the National Health Service (NHS).

Approval was granted by England's internationally renowned National Institute for Health and Care Excellence (NICE) [11] with the committee finding that Allen Carr's Easyway was not only effective but also cost-effective.

[14] Ubisoft developed the Nintendo DS game My Health Coach: Easyway to Stop Smoking based on the book.