Insect farming is expanding rapidly as a sustainable protein source. Whether farmed insects experience suffering is a contested scientific question with major ethical implications.
The welfare significance of insect farming hinges on an unresolved scientific question about whether insects have subjective experience of pain. The evidence is genuinely uncertain: insects have nociceptors, show pain avoidance, and can modulate behavioral responses to injury, but whether there is subjective suffering remains debated. Given the enormous numbers involved — trillions of individuals — even a small probability of sentience creates significant expected welfare impact. Precautionary approaches include minimizing potential pain during processing, avoiding harsh conditions causing injury, and supporting research that might resolve the question. Wholesale dismissal of insect welfare concerns based on body size or taxonomic distance is scientifically unjustified.