A pound of flour costs 50¢ and gives someone full nutrition for a day.
The mouse utopia experiment is not the world we are living in but it could be.
All you would have to do is bake hard tack biscuits and make them freely available to anyone who was hungry.
You would only have to spend about $200 per year on each of your mice.
A good number of them would even give you more than enough money to continue making bread.
You know what happens to the mice after a while.

All it takes to destroy or conquer a town is baking bread.

BatOwl - go to this post

You could eat your own shit with no other food to eat and live for another day

Now we're talking.

Jesus Christ - go to this post

Man cannot live on bread alone.

Duh, the point is to kill people silly.

Edit: Also, it's not nutrition advice, you can literally live on bread but you need to also listen to god or some gay shit like that. that's the full quote.