>The CMNR reviewed many of these studies when they were initially completed and noticed that underconsumption of the ration appeared to be a consistent problem. Typically, soldiers did not consume sufficient calories to meet energy expenditure and consequently lost body weight. The energy deficit has been in the range of 700 to 1,000 kcal/d and thus raises concern about the influence of such a deficit on physical and cognitive performance, particularly over a period of extended use. Anecdotal reports from Operation Desert Storm, for example, indicated that some units may have used MREs as their sole source of food for 50 to 60 days—far longer than the original intent when the MRE was initially field tested.
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>There have been successive modifications of the MRE since 1981. These modifications in type of food items, diversity of meals, packaging, and food quality have produced small improvements in total consumption but have not significantly reduced the energy deficit that occurs when MREs are consumed. This problem continues in spite of positive hedonic ratings of the MRE ration items in laboratory and field tests. The suboptimal intake of operational rations thus remains a major issue that needs to be evaluated.
Or to summarize it; soldiers weren't eating the full MRE's in Desert Storm, and it a widespread problem. Soldiers that weren't meeting their caloric intake requirements were suffering cognitive issues while in combat operations. Bit of an issue when you've got two groups of people trying to kill each other and not their own side.
So they figured the best option to get the soldiers to eat their rations was to keep improving and updating until soldiers were more inclined to eat the whole damn thing. I don't know if they've succeeded per say but they have been updating the menus pretty consistently since the 90's. I think only the beef stew and a few other meal items have stayed consistent over the last 30 years of MRE's.
>The CMNR reviewed many of these studies when they were initially completed and noticed that underconsumption of the ration appeared to be a consistent problem. Typically, soldiers did not consume sufficient calories to meet energy expenditure and consequently lost body weight. The energy deficit has been in the range of 700 to 1,000 kcal/d and thus raises concern about the influence of such a deficit on physical and cognitive performance, particularly over a period of extended use. Anecdotal reports from Operation Desert Storm, for example, indicated that some units may have used MREs as their sole source of food for 50 to 60 days—far longer than the original intent when the MRE was initially field tested. > >There have been successive modifications of the MRE since 1981. These modifications in type of food items, diversity of meals, packaging, and food quality have produced small improvements in total consumption but have not significantly reduced the energy deficit that occurs when MREs are consumed. This problem continues in spite of positive hedonic ratings of the MRE ration items in laboratory and field tests. The suboptimal intake of operational rations thus remains a major issue that needs to be evaluated.
https://pubmed.ncbi.nlm.nih.gov/25121269/
Or to summarize it; soldiers weren't eating the full MRE's in Desert Storm, and it a widespread problem. Soldiers that weren't meeting their caloric intake requirements were suffering cognitive issues while in combat operations. Bit of an issue when you've got two groups of people trying to kill each other and not their own side.
So they figured the best option to get the soldiers to eat their rations was to keep improving and updating until soldiers were more inclined to eat the whole damn thing. I don't know if they've succeeded per say but they have been updating the menus pretty consistently since the 90's. I think only the beef stew and a few other meal items have stayed consistent over the last 30 years of MRE's.