Earlier quoted context omitted.
on HN, it depends. a greedy corporate fat cat that cheated people? punishment. Drug or copyright infringement related crimes? rehab.
And why so you think that is? (I'm withholding my opinion/explanation until I feel I understand yours and can provide a more valuable response)
The question about diets for prisoners that accommodate the needs of the prisoner is generally a 20th century concept[1]. And generally case after case has sided with the prisoners[2].
[1] I've yet to find a case prior to the treatment of prisoners of war in WW 1 that discussed diet but I haven't looked particularly hard so I offer this opinion with confidence but not certainty :-)
[2] Recent example -- https://www.prisonlegalnews.org/news/2014/may/19/florida-pri...