As insect farming scales to meet protein demand, questions about insect sentience and welfare have moved from academic curiosity to practical urgency.
Insect welfare sits at the frontier of practical ethics under uncertainty. The scale of insect farming is vast — billions of individuals in each facility — making the stakes of getting welfare standards wrong enormous. Current scientific consensus is that insects likely have nociceptive responses (they react to noxious stimuli) but whether this involves subjective suffering remains contested. The precautionary approach suggests applying welfare standards proportional to the probability of sentience multiplied by the potential harm — which, given the scale, suggests that even small improvements in killing methods or living conditions could prevent enormous amounts of potential suffering.