Before the arrival of MREs, the soldiers had a plethora of food rations - none of these became popular and successful like the MRE. The Reserved Ration was the first field ration in the 1900s. Since the ration lacked proper nutrition values, it was replaced by the C-Ration in 1938. The C-Ration contained canned precooked and prepared food. This ration was prevalent during the World War II. But this ration was not popular with the soldiers since it lacked variety. The C-Ration was replaced in 1958 by the Meal, Combat, Individual (MCI) ration.