Just send in the Army Corp of Engineers and divert some Himalayan snowpack.
Actually a gallon of water is more like it. Activity requirements notwithstanding, increased food consumption requires increased liquid intake. Every gram of glycogen binds to four grams of water. Nope, you can't just eat dry starch.
When carbohydrate is burned the water is released.
I'm sure we can look at Napoleon's journals and gain some valuable insight about how to transport provisions through two thousand miles of rugged terrain in the middle of winter.