Voted for
- Yes
This depends on a country but it is doable.
If this is just for food then yes, here are some ideas.
To avoid lack of vitamins, buy supplements.
Oil, green salad ( discount on huge shopping malls), rice ( 1 kg serves 25 portions), eggs ( are cheep) and canned tuna (proteins, can't eat much of this, so one can of it can last for a few meals). You should be fine, but I don't recommend this.