The peroxide value (PV) determines the degree of oxidation of oil as well as gives an indication of the level of deterioration of oils and fats [15]. The PV of the palm oil samples obtained from this study agrees with the results of Ekpa and Ekpe [8] who stated that rancidity often begins to be noticeable when peroxide value is between 20 and 40mEq/kg,. Rancidity is an indication of deterioration of fats and oils. The peroxide values of the oil samples indicate that the oils sold within Jos metropolis may be rancid.