As insect farming scales up globally for protein production, questions about whether insects can suffer have become increasingly important for ethical food systems.
The precautionary principle suggests that when billions of animals are involved and the science is uncertain, welfare considerations deserve serious attention. Even if insects have limited sentience, the scale of farming — trillions of individuals per year globally — means small welfare improvements could matter enormously in aggregate. Temperature, crowding, humidity, and slaughter methods all merit investigation as potential welfare factors.