The mix of proteins, carbohydrates, and fats properly can maintain good energy level and fast removal of metabolic products. We present the evaluation of the men and women participants diet in a CrossFit affiliate box in Bulgaria. We compare it with the recommendations for high-intensity training. The data were obtained from a questionnaire for nutrition. Energy intake and carbohydrate consumption values were lower than recommended for exercises with high-intensity. The lower carbohydrate intake negatively influences the energy intake but has with no significant risk for the efficient energy provision of the long-term recovery processes.