Unlike MRE's which are designed as field meals, the Mainstay Food Ration was specifically developed for survival situations. Each block contains nine 400 calorie bars. The Mainstay Food Ration is packed with vitamins and minerals and specifically formulated for land-based, high stress situations. Ready to eat. Plus the Mainstay Food Ration won't provoke thirst. Contains no triglycerides, topical oils or cholesterol. It even tastes pretty good. 3600 calories per package, 5 year shelf life. Will withstand temperatures from -40 degrees F to 300 degrees F. USCG approved. We include Mainstay Food Rations in virtually all of our kits from the deHavilland up. You won't find a more compact, high caloric food source than the Mainstay Ration. Vacuum-packed in a solid, compact block. Kosher.
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