Involvement in organized physical exercise is often driven by motives such as weight loss and body recomposition. It is known that exercise affects the increased consumption of energy, which in addition to reduced calorie intake affects the reduction of excess subcutaneous fat tissue. The aim of this research is to find out how different types of exercise affect energy expenditure and whether possible compensatory behaviors cancel out the effects of exercise on gincreasing total daily energy expenditure. A total of 40 respondents participated, 22 women and 18 men aged 18-52, who are residents of the urban environment of the City of Zagreb and have been involved in the exercise program for a long time. Energy consumption was measured with fitbit charge 3 devices. The criterion for choosing valid days was wearing the device for a minimum of 600 minutes during the day, or 10 hours. After the analysis, a total of 463 valid days remained for all respondents in the final calculation. On average, the respondents achieved between 3 and 14 valid days, which were later used for analyzes of caloric consumption and the average number of steps. The results collected by fitbit charge 3 devices were processed in the Statistica program using the t-test and ANOVA methods. The results show that exercise has a significant impact on increasing energy consumption on the day it is performed, which amounts to 24% in men and almost 17% in women compared to days in which no exercise was performed. Energy expenditure, for men, on days of exercise was on average 690.9 kcal higher than on days without exercise (p<0.01), and for women 417.1 calories (p=0.15). Increased energy consumption was observed on the day after exercise compared to the day before exercise, however, the results showed statistical significance only in men (p<0.01), while in women (p=0.49). No difference was observed in energy consumption due to different types of exercise. Physical exercise has a significant impact on energy consumption on the day of exercise, which points to the importance of regular exercise, especially in the context of weight regulation. In order to represent the entire population, it is necessary to include residents of rural areas and people who perform manual labor.