We aimed to develop the weight predictor for obese patients. Telemedicine has been gaining more and more importance in recent decades in the supportive treatment of patients with various diseases. In obesitology, the rise of telemedicine occurred at the end of the 20th century, when communication technologies developed and the first diet records appeared via PC, and especially there was a significant increase in the number of obese patients. In diabetology, remote monitoring of blood glucose values using subcutaneous chips with wireless data transmission is being developed. In our research, we involved 248 probands in the monitoring of exercise and eating habits, and on the obtained data we tried to create predictive equations for the development of weight when changing these habits. In developing the prediction equation, we relied on the laboratory model of Dr. Hall, which we adapted for Czech conditions and environment. For adaptation to the Czech environment, we "enriched" Dr. Hall's model with a correction factor that better adapts the model to our conditions.