Insect farming produces protein at scale with minimal environmental impact, but the welfare question of whether insects experience suffering requires precautionary consideration.
The welfare question in insect farming requires holding scientific uncertainty and moral seriousness simultaneously. The current evidence for insect sentience is weaker than for vertebrates but not negligibly weak: insects show nociceptive responses, learn to avoid noxious stimuli, and have neural complexity that makes dismissing all welfare consideration scientifically unsupported. The scale of insect farming, involving trillions of individual animals, means that even low probability of some form of suffering multiplied by extraordinary numbers creates a welfare consideration that cannot simply be dismissed. The precautionary welfare approach invests in research to resolve the uncertainty, adopts the least harmful feasible practices while uncertainty persists, and remains willing to update as evidence develops.