First off, yes they do. Commisary's in prison's do have supplements and some facilities allow them to have their folks send in supplements. Some inmates find ways to smuggle in steroids, but the most important factor of all, is the fact that you are forced to reside in an environment that constantly tests you and your courage / strength, an environment where you have to be Vigilant. It's a testosterone-filled environment, and so people with great genetics and the motivation towards self-discipline, combined with the desire to thrive in such an environment - trigger adaptation responses. Also, since there is not a lot of to do, activities are very limited, people spend more time on working out and achieving the Prison "Alpha-Male" status.
Exactly. ^^^
I had plenty of meats and veggies galore. PB, tuna, protein powder, powdered milk, rice, etc etc
County jail food is nothing like State Food, big portions with nutrients.
I had fish oil, multi v, glucosamine, you can get weight gainer shakes from medical from sick drug inmates or aids inmates.
Throw a guy in the kitchen a couple of stamped envelopes and he will fill up a container full of beef stew, lol
All you have is time to rest, time to study and time to eat. It's the perfect environment for growth.
Not to mention a 1000 guys watching you to prey on your ass.
I would fill up empty jars with water and put them in a pillow case, books in bags, you'd be surprised what you come up with.
Some joints have P90x classes and programs to teach you how to lift weights.
You can get swole pretty easily.