Black soldier fly larvae are farmed at enormous scale as a sustainable protein source, with emerging welfare questions about their capacity for suffering during the rearing and processing stages.
Black soldier fly larvae represent the most intensively farmed insect species by volume, making welfare questions about their capacity for suffering particularly significant. Unlike some other farmed insects, BSF larvae's natural tendency to aggregate reduces some stocking density welfare concerns. However, the processing stage - where larvae are killed for protein extraction - raises questions about whether the methods used cause suffering. The scientific uncertainty about insect sentience does not eliminate moral risk; it means decisions should be made conservatively pending better evidence. Investment in humane processing research and application of the precautionary principle represent appropriate responses to genuine uncertainty at this scale of production.