I have just reviewed a recent (2017) meta study that pooled the results of ten research papers exploring the connection between mindfulness and stopping smoking? The headline is that there was no apparent benefit to giving up smoking attributable to mindfulness meditation.
The findings are somewhat surprising because speaking from experience, there is a very low incidence of smoking among meditators in general. It should be pointed out that the review highlighted a number of significant methodological weaknesses in the research (an unfortunate recent trend in contemplative science). However smoking cessation and meditation can be regarded as still being at the preliminary stage.
A distinction should be drawn between secular mindfulness meditation studies and traditional forms of meditation practice. Particularly where mindfulness participants are encouraged or ‘obliged’ to meditate as part of university undergraduate programmes. In traditional schools, meditation tends not to be used as a specific therapeutic intervention. Rather it offers holistic development to the meditator, enabling them to make choices about what they want to do with their lives and it hopefully supports them by providing the necessary mental surplus.