I just completed the Everest Base Camp trek with my wife - I used Soylent (version 1.4) for the hike. So I basically subsisted on Soylent for 2 weeks of hiking/

I just completed the Everest Base Camp trek with my wife - I used Soylent (version 1.4) for the hike. So I basically subsisted on Soylent for 2 weeks of hiking/climbing up to 5,500 metres above sea level. I did 1 packet per day (2000 calories), supplemented with some snack food on the trail (dried nuts and fruit, Stinger-brand honey waffles, muesli bars etc.). Motivation was firstly as an experiment (to see how I would cope), secondly because I wanted to accurately control/measure my caloric intake, and thirdly, because I was somewhat paranoid about getting food poisoning on the trek. (I used a MSR Guardian to provide clean filtered water for mixing up Soylent). I didn't really notice any odd effects - and it went better than expected well. Didn't get food poisoning (wife got diarrhoea, but she ate local food) - was a bit hungry on some days (in hindsight, 2,000 calories was a bit low - I upped it to 2,500 calories on the day I climbed Kala Pattar). All I can say was, Soylent was great for this use-case, and I'm a firm believer now. At home, I only use Soylent for when I have no time to cook, and need a reasonably healthy/complete meal - if your alternative is going out for a late-night kebab, or 24-hour fast-food, it's not a hard choice for me =).