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It depends on your size physically The MDRIs for calories can meet the needs of the average Army personnel. Men and women should have 3,250 to 4,600 and 2,300 to 3,150 calories, respectively, per day, which will fluctuate based on size. The Departments of the Navy, Air Force and Army say the daily calorie requirements are based on a 174-pound, 69-inch man and a 136-pound, 64-inch woman. Individuals who are smaller than the reference size will require fewer calories, and larger individuals might have higher needs.

Activity level and environment also affect caloric needs. Federal guidelines say heavy work or prolonged, vigorous physical training can increase calorie needs by 125 percent. Cold temperatures can increase calorie requirements by 5 percent to 10 percent, and individuals who perform strenuous work at altitudes above 10,000 feet might need 6,000 to 7,000 calories or 50 to 60 calories per kilogram of body weight per day

When having to work all day  and on forced march  you can do 10,000 calories in a day. average MRE is 1300 calories.

storage of food you need pest abatement in layers i use pain field generators, traps, mammalian sentry  and steel bins for storage, i got a bunch of used steel filing cabinets to store the 5 gallon pails in auctions for pennies cause they look ugly.