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Quebec’s breastfeeding rates are in a deplorable state, and even more so for smoking mothers. Public health providers are trying to increase breastfeeding rates and decrease smoking in this specific target group. Should they prioritise tobacco cessation interventions, or breastfeeding promotion interventions, or give equal priority to both goals at the same time? The authors attempt to scientifically answer this question, through a comprehensive literature review over the last ten years. In general, women who smoke have the tendency be younger, be less educated and more underprivileged than mothers who do not smoke and to breastfeed less often. Smoking mothers who do breastfeed usually wean off breastfeeding earlier than those who do not smoke. Pregnancy is considered an ideal moment to stop smoking, but relapse after giving birth is very high. In light of the range of difficulties faced when trying to quit smoking, health professionals should encourage smoking mothers to breastfeed since the benefits of breastfeeding could actually serve to reduce some of the harmful effects related to tobacco. Nicotine patches can be prescribed to increase the chances for successful tobacco cessation amongst these mothers. To date, few studies have been carried out on nicotine replacement therapies and breastfeeding smokers. More research is needed to evaluate the risks and benefits of nicotine substitutes for this sub-group, in both the short and long term.