I certainly agree with the shelf life issue. You are right there. But the calories are not there. That Mountain House is for a lady on a diet. The beef stroganoff which one would expect to provide a lot of energy has less calories in a whole #10 can than a single MRE. 10 servings still has less than a single MRE.
Probably real good stuff, but not for survival, I wouldn’t think.
IMHO, one can live on far fewer calories than is commonly assumed. The notion that one needs 2000+ calories a day sitting at a computer is absurd IMO.
http://www.inch-aweigh.com/dcn.php