[yostrovs]

Grass fed livestock is indeed a large portion of the world's meat consumption. Places like Argentina, Brazil, New Zealand, England, Texas have a great deal of cows, sheep, and goats walking the land and not fed through a trough. Please account those in your calculations of what it would take to replace a cow with a pile of corn.

[Zigurd]

Labelled grass fed beef that has not seen a feedlot is under 1% of the US market. It is also a dubious proposition that grass fed beef has any environmental advantages. At best it will find a niche as a luxury product as meat is replaced by plant-based foods.

[jessaustin]

Much of it is also unpalatable.

[Mediterraneo10]

Even in Argentina, the amount of beef that is purely grass-fed has dwindled. The popular image of standard Argentinian beef coming from bulls roaming the pampas has been obsolete for at least a decade now. Argentinian beefs are now fed maize etc. on feedlots like in most other developed countries.