"Starving" probably not. Using expired food, creating gruels, making the inmates sick, forcing inmates to steal food with violence -- is a bit more accurate title. Here is an example Arizona sheriff laughing as he makes inmates rotten food [1]. I would suspect many inmates do begin the starvation process and become violently ill. (NOTE: many of these inmates have not been convicted of a crime, this is county jail).
https://www.youtube.com/watch?v=tGLDnRX10gA