My Brother and SIL have been dehydrating their own food in meal type packing ie pasta, veggies ,spices etc. in jars and vac-pak bags, I think if you could do that rather then buying prepackaged meals,you could control the caloric counts then. Having said that I do have some FD foods in my long term storage as a back up and will be dehydrating fruits, veggies this summer to add to the stores. I have been storing water and have the means to purify more if needed.