Several studies have shown that environmental footprints may vary greatly across feed ingredients, due to differences in cultivation, processing, and geographical origin . Castonguay et al. recently showed that trade-offs between environmental impacts and monetary costs may improve feed sustainability within global beef production . Although the environmental impacts of livestock feeds are increasingly assessed through life cycle assessment (LCA) , these impacts are used mainly for regulatory purposes and not integrated into feed optimization. Transparent integration of LCA results in real-time production is therefore necessary to enable decision-makers to design more environmentally sustainable and high-quality feeds.