But in the end, my favourite food related poster is this one from the US Food Administration, because it really summarizes everything Americans needed to do then and now, from the diets we choose to the way we buy them and the quantities we serve. It should be on every wall.
Read the article that inspired this at NRDC Switchboard
Other poster slideshows:
Frugal Green Living: Posters for the Movement
Food Posters From the Past are Recipes for the Present
Posters from the Past that Can Guide Us in the Future (Continued)