Food energy is chemical energy that animals derive from their food to sustain their metabolism, including their muscular activity.
The Meal, Ready-to-Eat (MRE) is a self-contained individual United States military ration used by the United States Armed Forces and Department of Defense (DoD). It is intended for use by American service members in combat or field conditions where other food is not available. MREs have also been distributed to civilians as humanitarian daily rations during natural disasters.
Rationing is the controlled distribution of scarce resources, goods, services, or an artificial restriction of demand. Rationing controls the size of the ration, which is one's allowed portion of the resources being distributed on a particular day or at a particular time. There are many forms of rationing, although rationing by price is most prevalent.
Hardtack is a type of dense biscuit or cracker made from flour, water, and sometimes salt. Hardtack is inexpensive and long-lasting. It is used for sustenance in the absence of perishable foods, commonly during long sea voyages, land migrations, and military campaigns. Along with salt pork and corned beef, hardtack was a standard ration for many militaries and navies from the 17th through the early 20th centuries.
Backpacking is the outdoor recreation of carrying gear on one's back, while hiking for more than a day. It is often an extended journey, and may involve camping outdoors. In North America tenting is common, where simple shelters and mountain huts, widely found in Europe, are rare. In New Zealand, hiking is called tramping and tents are used alongside a nationwide network of huts. Hill walking is an equivalent in Britain, though backpackers make use of a variety of accommodation, in addition to camping. Backpackers use simple huts in South Africa. Trekking and bushwalking are other words used to describe such multi-day trips.
United States military ration refers to the military rations provided to sustain United States Armed Forces service members, including field rations and garrison rations, and the military nutrition research conducted in relation to military food. U.S. military rations are often made for quick distribution, preparation, and eating in the field and tend to have long storage times in adverse conditions due to being thickly packaged or shelf-stable.
Survival skills are techniques used to sustain life in any type of natural environment or built environment. These techniques are meant to provide basic necessities for human life, including water, food, and shelter. Survival skills also support proper knowledge and interactions with animals and plants to promote the sustaining of life over time.
The K-ration was a United States military ration consisting of three separately boxed meal units: breakfast, dinner, and supper. It was originally intended as an individually packaged daily ration for issue to airborne troops, tank crews, motorcycle couriers, and other mobile forces for short durations.
A survival kit is a package of basic tools and supplies prepared as an aid to survival in an emergency. Civil and military aircraft, lifeboats, and spacecraft are equipped with survival kits.
A field ration is a type of prepackaged military ration designed to be easily and quickly prepared and consumed in the field, in combat, at the front line, or where eating facilities are otherwise unavailable. Field rations are primarily used by military forces, though they are also sometimes distributed to civilians as part of humanitarian aid and emergency management. They differ from garrison rations and field kitchen provisions, which are intended for where proper meals can be supplied and prepared with relative ease and safety, such as in the rear where logistics are steady and fresh food can be supplied. They are similar to, but distinct from, other purpose-designed long-lasting types of food or rations such as emergency rations, humanitarian daily rations, and camping food.
The Individual Meal Pack or IMP is one type of field ration used by the Canadian Forces. The IMP is designed so that a continuous diet provides all the nutrition needed to sustain a service-person in the field. The IMP meets Canada's nutrition requirements, with the exception of calcium and folic acid, which are not significant if the consumption period of rations is less than 30 (consecutive) days. IMPs provide 1,200–1,400 calories (5.0–5.9 MJ) per meal.
Military chocolate has been a part of standard United States military rations since the original D-ration bar of 1937. Today, military chocolate is issued to troops as part of basic field rations and sundry packs. Chocolate rations served two purposes: as a morale boost, and as a high-energy, pocket-sized emergency ration. Military chocolate rations are often made in special lots to military specifications for weight, size, and endurance. The majority of chocolate issued to military personnel is produced by The Hershey Company.
A mini survival kit contains essential outdoor survival tools and supplies. It is intended to be carried on one's person at all times, be appropriate to all environments, and be a comprehensive kit without being too large. Mini survival kits are intended to provide the basic needs of a survival situation, self-rescue, assistance or a return to normalcy in optimum situations.
Ultralight backpacking is a style of lightweight backpacking that emphasizes carrying the lightest and least amount of gear. While no technical standards exist, some hikers consider "ultralight" to mean an initial base weight of less than 4.5 kg (9.9 lb). Base weight is the weight of a fully loaded backpack at the start of a trip, excluding worn weight and consumables such as food, water, and fuel. Base weight can be lowered by reducing the weight of individual items of gear, or by choosing not to carry that gear. Ultralight backpacking is most popular among thru-hikers.
Hiking equipment is the equipment taken on outdoor walking trips. Hiking is usually divided into day-hikes and multiple-day hikes, called backpacking, trekking, and walking tours.
Military rations, operational rations, or military provisions are goods issued to sustain the needs of military personnel. As their name suggests, military rations have historically been, and often still are, subject to rationing, with each individual receiving specific amounts from available supplies. Military-issued goods and the rationing of such goods has existed since the beginnings of organized warfare.
Camping food is food brought on or designed for camping, hiking, and backpacking trips. The term also encompasses ingredients that can be used to make said foods. The primary differences relate to campers' and backpackers' special needs for foods that have appropriate cooking time, perishability, weight, and nutritional content. To address these needs, camping food is often made up of freeze-dried, dehydrated, precooked, pre-prepared, or otherwise preserved foods that can last extended periods of time.
The history of military nutrition in the United States can be roughly divided into seven historical eras, from the founding of the country to the present day, based on advances in food research technology and methodologies for the improvement of the overall health and nutritional status of U.S. military service members. Through the research and guidance of medical and military professionals, rations and packaging have been consistently and dramatically improved.
In survival, the rule of threes involves the priorities in order to survive. The rule, depending on the place where one lives, may allow people to effectively prepare for emergencies and determine decision-making in case of injury or danger posed by the environment.
A food ration bar is a type of biscuit generally included in emergency rations and compact field rations. A cross between a hardtack and an energy bar, these shelf-stable products provide a high caloric density and are generally made of grain flour, sugar, and vegetable oil.
