[stjohnswarts]

I think we're talking about veggies here, no? I think at some point we'll have to turn to insects for our protein needs though.

[ada1981]

Mushrooms are a protein dense food that can be grown indoors with little energy needs.

[kaba0]

Though mushrooms contain large amounts of chitin which we can’t really digest, so I’m not sure they would be a good fit as base food.

[yreg]

We can get all the protein we need from plants if we want to.