Regarding alcohol and tobacco consumption, combat sports are classified into the group of sports considered as hazardous in all aspects and they generate severe physical and psychological stress. Recent studies reveal the problem of consumption of these substances in sports involving rough contact (rugby, hockey, Australian football, handball) and combat sports teem with rough contacts. The question is what alcohol and tobacco consumption habits athletes participating in combat sports have. The research included 144 fighters from different combat sports (wrestling, judo, jujitsu, boxing, kickboxing and taekwondo). We used surveys to study the consumption habits of alcohol and tobacco products. The differences among groups in age, sex, experience and the type of combat sport have been tested by Man-Whitney U test. The research revealed that fighters have a bigger problem with alcohol consumption and a smaller problem with tobacco consumption. The most hazardous fighter profile involves less experienced older male fighters. Female fighters are characterized by drinking less than men, but are much closer to men considering tobacco consumption. Fighters, trainers and all other participants in these sports must be aware of these trends. We have to take all the necessary measures to change this trend in addition to working on prevention in particularly hazardous groups.