Black soldier fly larvae (BSFL) are increasingly farmed as a sustainable protein source for animal feed and potentially human food. Their sentience status and welfare needs remain scientifically uncertain.
The precautionary principle suggests that as BSFL farming scales into the trillions of individuals, even small probabilities of sentience carry enormous moral weight. Freezing is considered a potentially more humane slaughter method than boiling or desiccation, though evidence is limited. The extraordinary scale of insect farming means that welfare improvements - if warranted - would affect more individuals than any other farmed species. Research into BSFL pain processing and welfare-relevant behaviour remains urgently needed.