Mussel farming has exceptionally low environmental impact and may have negligible welfare costs given bivalve sentience uncertainty, making it one of the most sustainable animal foods.
Farmed mussels occupy a unique position in the animal welfare landscape. The probability of meaningful welfare harm is low given bivalve neurological structure. The environmental impact is extraordinarily low compared to any other animal protein. If a dietary reduction in conventional animal protein is a welfare goal, mussel consumption may allow protein needs to be met with minimal moral cost across both welfare and environmental dimensions.