The aim of current study was to determine the validity of bioelectrical impedance analysis (BIA) to detect a 2-year follow-up in body composition compared with dual-energy X-ray absorptiometry (DXA). A follow-up repeated measure design was implemented. 51 healthy men with an average age 33.8 ±12.2 years, and average Body Mass Index (BMI) of 29.1 ±5.1 kg/m2 participated in the current study. The average appendicular lean mass (ALM) divided by height squared (ALM/ht2) and pre-sarcopenia as 1 SD below the average value based on specific reference values of young Saudi men were used. The reference value for DXA was 7.74 kg/m2 and for Tanita was 8.68 kg/m2. Results showed no significant differences in body composition between baseline and follow up measures using DXA and Tanita (P > 0.05). Tanita has a sensitivity of 66.7% and specificity of 69.6% compared to DXA at baseline and had a sensitivity of 100.0% and specificity of 86.4% when compared to DXA. Bland-Altman analysis showed that the mean difference between the measure of Tanita at baseline and follow up was -0.17 with upper and lower limit for agreement 1.82 and -2.17 respectively, and the comparison for DXA at baseline and follow up showed mean difference -0.04 with upper and lower limit for agreement 2.35 and -2.43 respectively. In conclusion, a short-term 2-year follow-up measures showed no differences in body composition including ALM. Tanita MC-980 has a strong level of sensitivity and specificity in the follow up measure in comparison with DXA.