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Army MREs, the modern ones.
Assuming I'm not teleported elsewhere, the place I live has plenty of drinkable fresh water and other supplies, so the only real concern is having consistent high-quality food available, and MREs are engineered to support people in the wild for several months, if not years. In case of a major war breaking out, so it would contain everything I would need to stay alive, or to trade to other people.
Even modern MRE’s only provide stable nutrition for about three weeks— they don’t provide complete nutrition. After that, you need to supplement it with other nutritional sources.
I mean, they are chock full of all sorts of preservatives to extend their shelf life, but they also have things like toilet paper and wipes, spoons and forks, heating pads, and various other things, and they can be eaten cold if there's some reason not to start a fire.
That being said, you can live a very long life eating only MREs. It's not like if you only ate them for three weeks you would die. You might have some malnourishment, and you might desperately long for something else, but it wouldn't be the nutrition issue that would kill you. They are designed to keep people alive in situations where bullets are an occupational hazard.
But if I have an infinite supply of them and they are fresh, then when I encounter people that are starving I can trade it to them for bullets or knives or I can just give them away. Could probably save a lot of lives by being a food producer capable of keeping people alive.
The largest risk I would face would be growing tired of the assortment.