The study shows the results of assessing the trophic status with the help of bioelectrical impedance in 78 patients with mandibular fractures. Deviations from ideal body weight were found in 47% of cases, body weight deficit in 24% of patients, risk to nutritional insufficiency, increase in fat mass in 23% of cases. The average values of the lean mass were lower than their physiological norm. The tendency to a more pronounced deviation of body composition indicators from the norm may be a marker of the inadequacy of the patient’s individual response to therapy. For each patient it is necessary to carry out rehabilitation measures aimed at correcting body weight, increasing muscle tissue, basic metabolism which will prevent the progression of weight loss and the development of complications. The use of adequate nutrition and physiotherapy increases the effectiveness of complex treatment, effectively helps the normalization of somatic conditions, has an important impact on the favorable outcome of the underlying disease, affects the motivational component of physical activity with the formation of adequate approaches to a healthy lifestyle.