A free cookbook for people living on $4/day
On $4/day you should avoid being vegetarian, get cheap food with as many calories as possible. Better value for money.EDIT: I get lot of down votes, so just to clarify:I am objecting to being _exclusively_ vegetarian. People on $4/day  have other problems. I am not saying you should buy junk food. There is lot of reasonable quality meat, for example fish if you live near sea. Also vegs such as rice or potatoes are cheap and high on energy