Other than the things people have already mentioned, there are sprouts as an option too. When sprouts were more of my diet (and eating raw vegan differently with a bit less fruit), I grew sprouts on the trail. It was pretty easy. I made sprout bags out of organic cotton meshed fabrics I had that were good for the size of seeds I was using and brought seeds bagged in a jar. When stopped for the night would take the bags out of the jar and use it to soak the seeds overnight as needed. Then I'd transfer them to the bags and hang the bags off my backpack in back, dunking them in water occasionally during the day. It worked great! You need to have good access to water for that though, so if you need to pack your water in with you and not find it well on the trail, then it probably wouldn't work as well. Although... you could dip the sprouts into your water before drinking it... I generally didn't start the trip using the sprouts as I'd pack things like celery, apples, citrus, romaine, cukes, etc with me, other fruits that start hard and will ripen later, etc and once those were exhausted I'd start sprouting. Sometimes we'd start with bags in our hands with fresh things that didn't fit in the backpacks, or hang from them well (like fresh bananas, or other tender things.. or large things like watermelon). It all depends on what we were into at the time and what was available. I had dried fruit and nuts and seeds for eating directly too, but they didn't have the freshness I wanted. We didn't have places we could buy food or send food to on these, so it was all what we could bring with us, forage, and/or sprout. So, yeah, it just takes a little planning with timing in mind.