Hospitals and medical labs store food? Whaaaaat?
I realize the health mechanic was taken out, and they need something else for hospitals to do, but seriously... what? I'm getting this mental image of empty hospital beds being filled with sacks of grain.
Quick edit: Why not make hospitals reduce happiness from overpopulation? You could reason that that's a result of some "behind the scenes" improvements in public health, making people happier that they aren't plague-infested because they live in a densely populated city.