This is a report that came out in 2019 in the Lancet that discusses a healthy transformative diet for the planet. It talks about human and planetary health, and the ideal balance of meat in our diets.
"The report is mentioned in the context of discussing healthy and sustainable diets, suggesting it would be valuable to listeners interested in the intersection of human and planetary health. Although it is a report and not exactly a purchasable product, similar reports can often be found via journal access, research databases, or as published documents available for download/purchase."