I don't know, but by calling inmates criminals, you are 1. Assuming guilt, and 2. Implying that crime is their identity, which is pretty short-sighted and dismissive.
There are people who are awaiting trail who are in prison. These people are have not been convicted of committing a crime, and are therefor not criminals.
...but honestly, most of the people awaiting trial have actually been convicted of other crimes in the past, so they could still be called criminals.
A criminal is someone who has committed a crime. Using criminal as a blanket term to refer to all inmates assumes that 100% of them are guilty, which is demonstrably false.
I mean…technicallyyyyyyy they initially asked about prisoners, then asked if fat criminals lose weight; which means they're asking about all prisoners, everywhere, around the world, and also all fat criminals as well
(Yes I'm being pedantic, and yes, the OP was worded clumsily, and yes you are correct , but but BUT I'm correct as well and that doesn't make me less of an ass)
1600? Yikes. That's like bare minimal survival. I bet the big hefty people that go in there feel quite a bit of suffering until their bodies get used to so little food.
Couldn't count calories, only done a couple of days in county, but the dudes in there were quite healthy.
Few days eating plain food, nothing tasty or fattening or salty, I dropped 5lbs. off my gut. Wasn't fat (overall) to begin with but dropped that belly fast.
Guys that had been in for a minute? Pasty white, but great skin, active and healthy looking. And no, there was nowhere to work out in the pod. Pushups and sit-ups if you like.
I attribute the nice skin to the cold. Works on my complexion, and I've read many others saying the same. OTOH, nothing much to do for fun, but the showers are hot. Might as well.
Quite an education. Taking away all but the base needs really seemed to fit those men up. No one fat, no one malnourished. No smokes, drugs, alcohol, or the aforementioned foods.
Plenty of hell in other ways, but we're talking about food.
That depends a lot on the exact prison. Because many prisons don't follow guidelines and provide less food than they are supposed to.
In theory, inmates are supposed to get between 2,400-2,700 calories a day. The actual amount might be closer to 2,000 or even below that. For a small person that might be enough to sustain themselves but bigger people will lose weight.
Unless a prisoner has money. Then they can use the commissary store to buy additional food and eat as much as they can afford.
And that's for the entire western world. Some countries are better at enforcing guidelines than others but every country has a few prisons that are run terrible.
The meals are actually planned out in quite a lot of detail. When they put out the new food guide in Canada they said it was the basis for things like prison meals, food for soldiers, etc.
As for specific calories or adjustments for specific BMI sorry don't know.