Comment Re:Experience with long distance hiking (Score 1) 89
Hmmm, you only had 1800kcal/day food rationing on average? You messed up your preparation/logistics planning in that case. You can easily cook up 3800kcal/day rations yourself(plenty of nuts, plenty of fat, dried fruit, dried meat etc. Skip grains etc, by mass you do not get the same amount of energy out of them, and makes you more thirsty than dried meat and dried fruit does), something I do when I go out for 2-3 week hikes, incl ski hikes along Kungsleden in winter(and contrary to expecations, you actually do carry a lot of fluids with you in winter if at all possible, because eating snow/drinking icecold water is a good way to weaken yourself)
As for the general point: Yes, long hikes can easily lead to starvation, even when you have proper planning. Military units doing long range/duration recon/patrol can lose lots of weight despite chomping down massive amounts of energy. Some friends of mine did 3-week jungle patrols about. They consumed at LEAST 4.8k kcals per day, yet lost between 9 and 15kg of body mass, depending on person. On my ski hikes, I can come back after two weeks and having lost 7kg