“Individual prisoners would not be able to choose whether to opt in to the study, given that they already don’t have a choice about what kind of food they eat. Instead, prison administrators would make the decision on a site-by-site basis..”

https://www.buzzfeednews.com/article/stephaniemlee/salt-institute-sodium-study-prison-funding

To say I don’t like this is an understatement. Inhumane on every level.