As insect farming scales rapidly to meet demand for sustainable protein, the question of whether and how insects can suffer has become increasingly urgent for welfare-conscious consumers and regulators.
The question of insect sentience is genuinely uncertain, but evidence of nociception, stress responses, and avoidance learning in several species suggests the issue deserves serious attention. Given the vast numbers involved — billions of insects are farmed daily — even a small probability of meaningful suffering represents a significant welfare concern at scale. Best practices in farmed insect welfare include maintaining appropriate density, temperature, humidity, and substrate quality; minimizing painful procedures during harvest; and using rapid kill methods. The field of insect welfare science is young but growing, and early investment in standards can shape industry norms.