The aim of this study was to prepare and evaluate a fermented formula for elderly by using bioactive ingredients, which are locally available, inexpensive and can be easily prepared. After fermentation, the final product was chemically evaluated, the protein content was 24.42%, the crude fat was 5.50%, the moisture was 6.19%, and pH was 6, while the mineral contents were as following: Ca 220 mg%, Fe 2.93 mg%, Mg 80.3 mg% and Se was 7.8 mg%. The fermented formula was a good source of essential amino acids. Microbiological quality reflects the safety of the final product, after fermentation no harmful organisms were detected. The biological assessment was accomplished by feeding twenty female and male Sprague Dawley rats for four weeks. The effect of the fermented formula on the feed efficiency ratio was significantly decreased than that of the control group. The level of serum lipids was insignificantly decreased compare to the control group. Fasting serum glucose and AST were significantly decreased, while zinc and cupper increased significantly when compared with the control group. Feeding rats on the fermented formula enhanced serum immunoglobulin, IgM. We conclude that the fermented formula showed beneficial effects on liver function and immune system.