MRE is an acronym which stands for Meal Ready to Eat. It is a kind of military food ration. They are also favored by emergency management personnel and preppers thanks to their long shelf lives and high-calorie counts. They also don't taste too bad either.
It has been recognized that nutrition is an essential element in a soldier's effectiveness ever since the time of the Revolutionary War when the first American troops fought for our freedom. The first rations that American soldiers received were things such as beer, hard bread and salted pork. The "Reserve Ration" changed during the early 1900s to hard tack biscuits and one pound of jerky. The "C ration" was introduced in 1938 as an upgrade, although the canned food was hated by most. From 1958 through 1975, the ration of choice was the Meal, Combat, Individual (MCI), although it frequently was as identified as widely as the "C-rats." In 1975, the first MREs emerged. In both nutrition and flavor, they were superior to those that preceded them.
Usually "real" MREs are government property and aren't available for sale to civilians. However, Civilian MREs are frequently made for the civilian market by the same manufacturers. As you start to shop around, you will discover that food manufacturers such as SoPakCo, Ameriqual and Wornick have existed for decades. There are also newer companies that still have been producing for several years. They include companies such as XMRE, Meal Kit Supply, and International Meals Supply. A civilian MRE brand named Eversafe is manufactured by Wornick. Meals called APack are sold by Ameriqual. Sopakco meals are marketed as Sure-Paks. A brand named MREStar is sold by International Meals Supply and civilian MREs are sold by Meal Kit Supply under its own name. These are all USDA inspected and made in the USA.
When purchasing MREs, here is a recommendation for you. MREs that are sold at a gun show or on eBay might be a little less expensive than purchasing from a manufacturer directly. However, you don't know how they are being stored. They might have sat in somebody's hot garage or a car trunk for many years.