Billy Nicholles and I considered the environmental impacts of vegan vs. meat-based pet foods, in a detailed study in Frontiers in Sustainable Food Systems. We considered the meat- and plant-based ingredients within commercial pet foods, and the role of animal byproducts. We even considered emerging alternatives, including cultivated meat and microbial protein-based pet foods. The results are clear: sustainable pet food alternatives offer environmental benefits which are both massive and under-recognised.
Nicholles B & Knight A (2025). The environmental sustainability of meat-based versus vegan pet food. Front. Sust. Food Sys., 9. https://doi.org/10.3389/fsufs.2025.1569372.
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