Farmed insects are promoted as a sustainable protein source, but rapid industry growth has outpaced welfare science. Whether and how insects suffer in farming conditions is a genuinely contested question.
Insect welfare sits at the frontier of animal welfare science. The probability that insects experience subjective suffering is genuinely uncertain — lower than for vertebrates, but not definitively zero. The precautionary principle suggests that even low-probability sentience deserves consideration when billions of animals are involved. At population scale, minor welfare improvements in insect farming could affect more individuals than all vertebrate welfare interventions combined. Current industry practice varies widely: some producers use cold stunning before killing, reducing any potential distress; others use methods like boiling that, if insects do experience pain, would cause significant suffering. As the insect protein industry grows rapidly, establishing welfare research and precautionary standards now — before practices become entrenched — is the most effective intervention.