I'm really amazed by all the supporters on here. When I first heard about Soylent, I thought it was a terrible terrible idea. I mean, there's so much to food. It's not just eating it, it's all the flavours and ingredients and cooking with friends and loved ones and parties and such. I'm guessing most people on here use it as a supplement + regular food, but when I saw it originally, it seemed like it was intended to…
Backpacking, hiking, search and rescue, hunting, anything outdoors.
I carry an unopened package of Soylent powder in my SAR pack and I've been glad I have it several times. Take a Nalgene, fill it up to about 300 ml with powder, add water, shake vigorously, and now you have enough fuel to ease fatigue for several hours. It's lightweight and convenient and easy. Cleanup is simple.
Now when I'm peak-bagging my default is just to carry some Soylent with me. The only time I carry my mess kit anymore is if I'm going out with the intention of a morning, afternoon, or evening meal ritual being a planned part of the trip. Like, "let's hike out to Phoenix Lake and have a nice hot dinner at sunset." Otherwise, Soylent.
I've been gradually becoming a disciple of the ultralight over the last couple of years and food weight is challenging to whittle down. The alternatives, freeze-dried anything, are mostly disgusting and still require carrying a stove, fuel, and require cleanup. Soylent has reduced my pack weight and size by quite a bit, and (for the most part) I'm getting better nutrition overall because I can just chug it in small doses throughout the day. It also means I'm less likely to develop a fatigue-related injury.
It's gotten some attention from other folks on my SAR team and my longtime hiking partner has started giving it a try too. It doesn't seem to be something that's really caught on in the outdoor industry yet. I really wish Soylent would sell small, lightweight packages of the powder that were pre-sized to mix with about .8 liters of water and then get it into places like REI, but I guess that's not something they're very interested in.