@lighthawk96 yep, but they aren't planning it very well. He got the nutritional values backwards. Meat is the one that provides nutrients you can't normally get from vegetables (at least without a carefully planned diet and a variety of plant products not available to him), not the other way around, jerky is extremely dense and transportable, and in an emergency situation with a trip duration that long they don't really need to worry that much about nutrition, they just need calories and protein, nutrients deficiencies take longer to become a major problem, but dried meat does calorie and protein density better too. Ideally for emergency traveling food you want nuts, cheese, and jerky, preferably also some dried fruit or other lightweight source of sugar to give a quick burst of energy when needed. Trail mix is very well suited to hiking as the name implies, it was literally designed for it. jerky is also extremely popular among backpackers because it can keep you going. Cheese is also a very good choice for era-appropriate hiking food because it is about as much fat as you can eat without it going straight through your system and not being able to absorb it, and that day gets converted into calories that will keep you going when you are burning a lot of energy.