Smoking cigarettes is considered as a world-wide problem, which is not only medical, but also social. Addiction to nicotine causes chronic and often relapsed diseases, which are interconnected with many other illnesses and which frequently result in the death. Smoking cigarettes causes not only a disease (which does not occur so often in the case of non-smokers), but it also influences life style of smokers. It has been proved that smokers' eating behaviour is more risky (they eat more fried food, less vegetables and fruits...), therefore they are more likely to fall ill with the noninfectious mass disease.

The present study aimed to evaluate eating habits and physical activity status of Turkish population, and to determine nutritional changes. This study was conducted in 12 provinces of 11 regions of NUTS level 1 via a face-toface interview using a pre-prepared questionnaire and included 1536 subjects aged >15 years with different socioeconomic statuses who eat out at least once in a month.