K-ration

K-ration

The K-ration was an individual daily combat food ration which was introduced by the United States Army during World War II. It was originally intended as an individually packaged daily ration for issue to airborne troops, tank corps, motorcycle couriers, and other mobile forces for short durations. [U. S. Army Quartermaster Museum, "RATIONS: The History of Rations", Conference Notes prepared for the Quartermaster General, The Quartermaster School (January 1949) http://qmfound.com/history_of_rations.htm] The K ration provided three courses: breakfast, dinner (lunch) and supper. While it was intended that the three meals be eaten in the named order, they were not always consumed in this manner.

History

In 1941, Dr. Ancel Keys (a University of Minnesota physiologist) was assigned by the U.S. War Department to design a non-perishable, ready-to-eat meal that could fit in a soldier's pocket as a short-duration, individual ration. Keys went to a local supermarket to choose foods that would be inexpensive, but still be enough to provide energy. He purchased hard biscuits, dry sausages, hard candy, and chocolate bars. He then tested his 28-ounce, 3,200 calorie (871 gram, 13,400 kJ) meals on six soldiers in a nearby army base. The meals only gained "palatable" and "better than nothing" ratings from the soldiers, but were successful in relieving hunger and providing sufficient energy. The new rations were initially intended as individual rations suitable for short durations only, to be used for a maximum of fifteen meals before supplementation or replacement with 'A' or 'B' field rations. They were soon called the "paratrooper ration", since paratroopers were the first to be issued the ration on an experimental basis.

The actual prototype of the K ration was a pocket ration for paratroopers developed by the Subsistence Research Laboratory (SRL) at the request of the U.S. Army Air Corps (USAAF) early in the war. [U. S. Army Quartermaster Museum, "Army Operational Rations - Historical Background", http://qmfound.com/army_rations_historical_background.htm] Two original samples (one version used pemmican biscuits, a peanut bar, raisins, and bouillon paste; the other used pemmican biscuits, a small D ration bar, canned processed meat, and lemon beverage powder) evolved into the one-package breakfast-dinner-supper combination later adopted as standard. [U. S. Army Quartermaster Museum, "Army Operational Rations - Historical Background", http://qmfound.com/army_rations_historical_background.htm] The Quartermaster Command's Subsistence Branch altered some components and renamed the ration the Field Ration, Type K, or "K ration"; the final version totaled 2,830 calories a day. [Tucker, Todd, "The Great Starvation Experiment: The Heroic Men Who Starved So That Millions Could Live", Simon and Schuster (2006), ISBN 1416531890, 9781416531890, pp. 30-31] The first procurement of K rations was made in May 1942. [U. S. Army Quartermaster Museum, "Army Operational Rations - Historical Background", http://qmfound.com/army_rations_historical_background.htm] Although rumor has it that it was named after Dr. Keys or was short for "Kommando" (as elite troops were the first to receive it), the letter "K" was selected because it was phonetically distinct from other letter-name rations. [U. S. Army Quartermaster Museum, ""RATIONS: The History of Rations", Conference Notes prepared for the Quartermaster General, The Quartermaster School (January 1949) http://qmfound.com/history_of_rations.htm]

The K ration first saw use in 1942, when it was issued to U.S. Airborne troops on an experimental basis. Initial reports praised it for the variety of the foods incorporated, as well as the light weight. However, testing in extreme climatic and operating environments was extremely limited: in jungle testing, for example, the K ration was evaluated in Panama by paratroopers and the Panama Jungle Test Platoon in an experiment lasting only three days. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 292-293] Marching was done not through jungle, as might be expected, but only on flat or gently rolling terrain on cleared roads, for an average of only eleven miles per day. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 292-293] The test platoons carried one K ration, weapon, poncho, shelter half, and a single filled one-quart canteen. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 292-293] No testing was done of men on extended patrols or with heavier individual loads of ammunition and water. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 292-293] At the end of the three days, the men were weighed, and as no abnormal weight loss were noted, the K ration was deemed successful. These findings were later used in 1943 to support a decision to discontinue production of the Mountain ration and the Jungle ration. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 291-293] Both of these specialized rations had proved costlier to produce in their original form, and were intensely disliked by the Army's Subsistence Branch staff of the Quartermaster Corps, who had to secure additional supply contracts and storage facilities for the new rations. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 291-293] Though the K ration was designed to be an emergency ration, Quartermaster Corps officials would continue to insist until the end of the war that the K ration would satisfy all requirements for a lightweight complete field ration for all front-line troops at a scale of one K ration per man per day, using the prior experiments with airborne forces as evidence. The ration's intended use as a short-term assault ration would soon fall by the wayside once U.S. forces entered combat.

One major criticism of the K ration was its caloric and vitamin content, judged as inadequate based on evaluations made during and after World War II of the ration's actual use by Army forces. [Youmans, John B. (Dr.), "Preventive Medicine in World War II, Vol III: Personal Health Measures and Immunization - Chapter IV - Nutrition", U.S. Army Medical Publications, U.S. Government Printing Office (1969), p. 129] There was also a danger of over-reliance, which could cause the three meals to become monotonous if issued for long periods of time [Henry, Mark R. and Chappell, Mike, "The US Army in World War II (1): The Pacific", Osprey Publishing (2000), ISBN 1855329956, 9781855329959, pp. 20-21] . Fundamental to the K ration's inadequacy was its ration allowance, rigorously standardized at one ration per man per day. Because of the short duration and hasty nature of experimental testing of the K ration before adoption, ration planners did not realize that soldiers fighting, digging, and marching in extreme conditions would require many more calories per day than a soldier marching over cleared roads in temperate climates. Nevertheless, one K ration per man per day would remain the basis of issue, even for mountain troops fighting at high altitudes and infantrymen fighting in the thick jungles of Burma. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 292-293]

Packaging

The K ration originally came packed in a generic tan-colored rectangular cardstock box with black lettering. The outer box was printed on its top in bold capital sans serif block letter type with the text: "US ARMY FIELD RATION K", with the meal unit type (BREAKFAST, DINNER, or SUPPER UNIT) printed underneath it and a capital letter on each end (B, D, or S). The inner box had the meal unit type printed across its top and a capital letter on each end (B, D, or S).

The later "Morale Series" had unique packaging designs that were color-coded and letter-coded on the ends for quick identification. The breakfast ration box had brown printing and was marked with a brown capital letter "B" on the ends, the dinner ration box had blue printing and was marked with a blue capital letter "D" on the ends, and the supper ration box had olive drab printing and was marked with a olive drab capital "S" on the ends. The packaging consisted of a chemically-treated cardboard outer carton and a water-proofed waxed-cardboard inner carton to protect the contents from contamination or damage. The waxed carton was found useful by soldiers to start small fires in which to boil water for coffee or cocoa. [Tucker, Todd, "The Great Starvation Experiment: The Heroic Men Who Starved So That Millions Could Live", Simon and Schuster (2006), ISBN 1416531890, 9781416531890, pp. 30-31]

The entree came in a small, round metal can painted green with black lettering, with a metal key (dubbed a "twist key") to open it, all packaged together in a square 3 inch x 2 3/4 inch x 1 7/16 inch cardboard box. The rest of the meal came packed neatly in a waxed paper or laminated cellophane pack. The pack always contained two packages of 8 rectangular K-1 crackers or 4 square K-2 dried biscuits each, a 4-pack of commercial-grade cigarettes, and either a flat rectangular stick of chewing gum or a square piece of candy-coated gum. Special items (like matches or Halazone pills) were packed in one unit but not the others due to space limitations. Late production meals added a paper-wrapped paddle-like disposable wooden spoon and used the standard P-38 can opener instead of the "twist key".

Menu

*Breakfast Unit: canned entree (chopped ham and eggs, veal loaf), biscuits, a dried fruit bar or cereal bar, Halazone water purification tablets, a 4-pack of cigarettes, chewing gum, instant coffee, and sugar (granulated, cubed, or compressed).
*Dinner Unit: canned entree (processed cheese, ham, or ham & cheese), biscuits, 15 malted milk tablets (early) or 5 caramels (late), sugar (granulated, cubed, or compressed), salt packet, a 4-pack of cigarettes and a book of matches, chewing gum, and a powdered beverage packet (lemon (c.1940), orange (c.1943), or grape (c.1945) flavor).
*Supper Unit: canned meat, consisting of either chicken pate, pork luncheon meat with carrot & apple (1st issue), beef & pork loaf (2nd issue), or sausages; biscuits; a 2-ounce D ration emergency chocolate bar, Tropical bar, or (in temperate climates) commercial sweet chocolate bar; a packet of toilet paper tissues; a 4-pack of cigarettes; chewing gum, and a bouillon soup cube or powder packet.

In total, the three meals provided between 2,830 and 3,000 calories, depending upon components. As it was originally intended as an "assault" ration to be issued for short durations, the K ration was designed to be used for a maximum of 15 meals. The K-ration was produced by the Cracker Jack company with a waxed paper ration box, about the same size as the company's famous Cracker Jack box.

K ration crates were either wood (43 lbs. each) or fiberboard (41 lbs. each) and contained 12 daily rations (each daily ration consisting of one Breakfast unit, one Dinner unit, and one Supper unit) for a total of 36 units per crate. They were packed one unit deep, three units wide (one of each unit), and twelve units long (all of the same unit type).

The U.S. Army M-1943 herringbone twill (HBT) fatigue uniform had simplified, but large, pockets that were designed to be able to hold a K-Ration box.

Evaluation and Field Reports

The C-ration was the only ration comparable to the K-ration in widespread issue, with six cans comprising one full ration. Introduced in 1938 (and refined in 1940, 1943/1944 and 1945), it was significantly heavier, with less variety in meals, but more calories.

The decision to eliminate specialized rations in 1943 would lead directly to the overuse of the K ration for troops fighting in extreme environments and extended missions, in some cases resulting in severe malnourishment. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 291-294]

While fighting in the European Theater of Operations, the US Army discovered that troops also quickly got tired of the K-ration, some being forced to eat it for months on end. As it was based on an emergency ration, the K ration provided roughly 800–1,200 calories fewer than required by highly active men, especially those working in extreme heat or bitter cold, and malnutrition became evident. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 292-293] The problem was exacerbated by insistence on a rigorous issue of a single K ration per day rather than supplying additional K rations for active men. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 292-293] The packaging of the K ration into separately described daily meals may have intensified this problem by leading commanders to assume that daily caloric intake was sufficient. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 292-293] An extensive 1943 field report from the European theater noted that none of the packaged rations were recommended for continued use by active troops for periods in excess of 10 days. ["Field Trial, Special Rations: European Theater of Operations", U.S. Army, (July 1943)] A survey of troops in the forward areas and evacuation hospitals of the Fifth U.S. Army serving in the Italian campaign noted that almost all soldiers questioned in infantry, engineer, and other mobile forward units said they had lost weight since the beginning of the Italian campaign. Surgeons commented upon a noticeable decrease in body fat and wasting of muscle, requiring copious feeding and rest, as well as ascorbic acid (Vitamin C) deficiency. [Field Survey, "Essential Technical Medical Data, North African Theater of Operations, U.S. Army for December 1943", 27 January 1944, Appendix V]

The K ration was also criticized for its performance in the China-Burma-India (CBI) theater of operations, where difficulties in supply from bases in India had resulted in widespread and monotonous use of the K ration for light infantry forces of the United States, as well as Nationalist China and the United Kingdom. Many soldiers, including the U.S. unit known as Merrill's Marauders [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 292-293] and British Chindit forces in Burma had for 5 months lived primarily [Hopkins, James (M.D.), Stelling, Henry (M.D.), and Voorhees, Tracy S., The Marauders And The Microbes: A Record of Righteous Indignation, Infantry Journal 64 (March 1949) p. 302: http://history.amedd.army.mil/booksdocs/wwii/CrisisFleeting/bookfive.htm] on K-rations, supplemented by rice, tea, sugar, jam, bread, and on occasion canned meat rations, which were dropped to them by air. In the case of the Marauders, whose diet consisted of 80% K rations, severe weight loss (an average of 35 pounds per man) and vitamin deficiency were noted, which may have also contributed to a decline in resistance to various tropical diseases. [Kearny, Cresson H. (Major), "Jungle Snafus...And Remedies", Oregon Institute (1996), pp. 292-293] [Hopkins, James (M.D.), Stelling, Henry (M.D.), and Voorhees, Tracy S., "The Marauders And The Microbes: A Record of Righteous Indignation", Infantry Journal 64 (March 1949) p. 302] A British medical officer reported that, of 209 Chindit men examined at the end of this time, 182 had lost up to 30 pounds and 27 had lost from 30 to 70 pounds. Deficiency diseases such as pellagra and beriberi were recognized. One of British General Orde Wingate’s units in the Dehra Dun area was visited some months after they had last eaten K-rations. At the sight of a box of K-rations, carried by the visitors, two of Wingate’s men vomited. [Heaton, Leonard D., and Anderson, Robert S. (eds), "Internal Medicine in World War II", Volume 3, Infectious Diseases and General Medicine, Chapter X, Nutritional Disorders, Falls Church, VA:Office of the Surgeon General, pp. 238-239] .

The unpalatable nature of some of the K ration's components, such as the fatty pork loaf or the highly acidic lemon powder [Moran, B., "Dinner Goes to War: The Long Battle for Edible Combat Rations is Finally Being Won", American Heritage of Invention & Technology, Summer 1998, Vol. 14, No. 1, pp. 10-19: The lemonade powder in the K ration, ordinarily the sole source of Vitamin C, was so acidic that soldiers commonly joked that it worked better as a floor cleaner than as a drink.] , caused many users to throw them away, further reducing caloric content. Often, a secondary food source was issued, such as a D-ration bar, or fresh oranges, in an attempt to bring up the calorie and vitamin content.

In 1943, a ration board headed by the chief of the Nutrition Branch, Office of the Chief Surgeon, was appointed and directed to conduct comprehensive field tests on rations which would be used later in combat. In the first of these field tests it was noted that troops remained in reasonably good physical condition during a 10-day period on C, K, and five-in-one rations but that the rations were deficient in calories, especially for large men. The report listed the following recommendations: The use of the D ration as a supplement only; the further restriction of the use of C and K rations to 5-day periods unless supplemented; and the replacement of the wholly unsatisfactory dextrose and malted tablets of the K ration with a desirable substitute. Additionally, replacement of the fruit powder component of C and K rations with a source of ascorbic acid that would guarantee the utilization of this nutrient was recommended, as the current diet of troops operating on individual rations in the field was almost wholly devoid of ascorbic acid. [Youmans, John B. (Dr.) "Preventive Medicine in World War II, Vol III: Personal Health Measures and Immunization - Chapter IV - Nutrition", U.S. Army Medical Publications, U.S. Government Printing Office (1969), p. 129]

By war's end, millions of K-rations had been produced, but the army had lost interest in them. Postwar Army supply plans for field rations relied solely on heavier canned wet rations, initially the C ration, later by similar canned rations such as the MCI, primarily to save additional cost of procurement and storage. In 1948, after introduction of improvements in the C ration, the K ration was declared obsolete; production contracts had long since terminated. Most existing K ration stocks were declared surplus, and distributed to civilian feeding programs overseas. [U. S. Army Quartermaster Museum, "Army Operational Rations - Historical Background", http://qmfound.com/army_rations_historical_background.htm]

ee also

*D ration
*Jungle ration
*Major Cresson Kearny, U.S. Army
*Mountain ration
*United States military ration

Notes

External links

* [http://www.livinghistoryfarm.org/farminginthe40s/life_24.html Farming in the 40s article] with information on K-rations
* [http://www.olive-drab.com/od_rations_k.php K-rations article]
* [http://www.usarmymodels.com/ARTICLES/Rations/krations.html U.S. Army Models K-ration page]


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