Some people may be willing to cut down the number of cigarettes smoked but may not be ready to quit completely. Long‐term change in health status would be a direct indicator of whether cutting down reduces long‐term smoking‐related harm, but no RCT evidence investigating this was found. Reviewers instead found studies looking at smoking reduction and/or cessation rates and found that people can be helped to reduce the number of cigarettes and to quit over the long term by using nicotine replacement therapy (NRT). However, findings were based on a relatively small number of trials and do not directly show the harm reduction and evidence is of low or very low certainty.