Purpose: This study compares the dietary habits and training demands of the Hungarian Futsal Team (HFT) and the Diabetic Futsal Team (DFT) to explore whether diabetes is the reason behind the different competition systems. Materials/Methods: Team members and the manager signed a consent form. Futsal players completed an anonymous questionnaire. The data were analysed using SPSS and Excel (significance level: á 5 0.05). Results: Members of the HFT reported slightly higher involvement in meal planning than members of the DFT, although satisfaction with meal variety and consumption was similar (HFT: 3.85 +- 0.69; DFT: 3.45 +- 1.21; and HFT: 4.38 +- 0.51; DFT: 4.45 +- 0.52). Access to food at training facilities was inadequate in the case of both teams. The study found that DFT players experienced greater difficulty implementing pre-exercise meals compared to HFT players (HFT: 3.36 +- 1.03; DFT: 3.77 +- 0.73), although the difference was not statistically significant (P 5 0.27). More DFT players (70%) ate during training compared to HFT players (16.67%). Members of the DFT also found it more difficult to implement post-exercise meals (HFT: 4.00 +- 0.81; DFT: 4.09 +- 0.94), although the difference was not statistically significant (P 5 0.80). Members of the HFT trained more frequently (7.54 +- 1.13 sessions/week) and for longer durations than members of the DFT, although statistical significance was not tested for these variables. The intensity of endurance and speed training showed no statistically significant differences (P > 0.1). Self-assessments of endurance and speed training intensity also revealed no significant differences between the two teams (endurance training: P 5 0.132; speed training: P 5 0.741). Conclusions: Despite dietary and physiological challenges, diabetic players do not face significant disadvantages. Differences in training schedules and durations are the primary factors separating the two teams' competition systems.  Kulcsszavak: diabetes, nutrition, futsal, sport, diet, player