I just remembered reading an article about one of this country's earliest "Survivalists" who was an heir to a huge fortune earned by his family. The actual name and business escapes me at the moment, but this man was perhaps the earliest "bug out patriot" and I believe he was the founder of the 1950's anti-Communist group which called itself "The Minutemen" (no relationship to the modern border patrol group of the same name). He would elude the Feds when they were searching for him to arrest him by taking off into the desert and wilderness on foot, and survive very well for months on end. In an interview, he said that to stock up on long term storage rations and the other 'survival' food products sold today was, in his opinion, a big waste of money. He said that all that is necessary for human health/survival over sustained long periods was to buy 100 lb. or larger quantity bags of dry dog food! He claimed that it is storable, portable, cheap in cost, and both highly nutritious as well as high calorie. Having myself tried eating it, I can't say I enjoyed it, but in terms of survival nutrition and being cost efficient it's certainly worth considering, and certain to taste better the hungrier you get!