I used to like to play the pc game Oregon Trail. It was a fun game but there was really an Oregon Trail when folks went west in wagon trains. Preparedness advice blog shares a list of the foods the folks took with them. I found this interesting. Now days we can get pretty much any food from any where in the world just by walking into our local supermarket but look how skimpy the lists of foods were.
I would think they all got sick of everything very quickly. I am also thinking this may be where wild food foraging began because I know I would have been looking for something else to eat lol