Bioimpedance analysis is based on measuring the electrical conductivity of various body tissues. The integrated multi-frequency method is performed by the integrated single-frequency method with the same position of the electrodes, but measurements are made at several frequencies. The beginning of the practical application of bioimpedance analysis to characterize human body composition is usually associated with the work completed in the early 1960s by anesthesiologist Henri Tomasset to assess first the water sectors of the body and then other components of body composition. To measure the impedance of a specific body segment, the current and measuring electrodes must be positioned accordingly. The main structural element of the biological system is the cell, which consists of the cytoplasm and the membrane surrounding it. The cell membrane acts as a barrier between the intracellular fluid and the extracellular fluid. In our proposed method, the frequency ratio is in the range of 3:4:5. This means that if we take the high frequency as 500kHz then 3 other frequencies should be taken 166kHz, 41kHz and 8kHz. It can be concluded that the 4-frequency method with measurements at 8 kHz, 41 kHz, 166 kHz and 500 kHz and the Cole-Cole model provide better accuracy than the other methods. This means that if we take the high frequency as 500kHz, then the other 3 frequencies should be taken as 166kHz, 41kHz and 8kHz. It can be concluded that the 4-frequency method with measurements at 8 kHz, 41 kHz, 166 kHz and 500 kHz provides better accuracy.