my guess would be that the protein will be too low and the quality of carbs are bad at poor households.
my depression went away after switching to high fat/no carb with at least 20 gramms of protein per meal.
So poor people prolly get more calories from refined sugar and cheap carbs.
When younger, I was hungry in school and would sometimes be in pain from it. Never stopped worrying about food ever since. Most of my anxiety is gone now, but I keep cat food just in case and insects(mealworms) as a secondary food source should things ever go so bad that everything falls appart.
The nature of "poor people food" varies widely depending on where you are and what is cheap locally. Rural poor, for example, often have game animals and garden vegetables as a significant part of their diet, which is pretty healthy as such things go. When I lived in the Palouse, lentils and peas figured prominently because those were local crops and therefore approximately free. The diets of the urban poor are admittedly worse in my experience.
When younger, I was hungry in school and would sometimes be in pain from it. Never stopped worrying about food ever since. Most of my anxiety is gone now, but I keep cat food just in case and insects(mealworms) as a secondary food source should things ever go so bad that everything falls appart.