Inefficiency of meat and dairy production and land use were major arguments for switching to a vegan diet (when I did so) 20 years ago. Others have chimed in

Inefficiency of meat and dairy production and land use were major arguments for switching to a vegan diet (when I did so) 20 years ago. Others have chimed in with data, so here's today's anecdotal evidence: today I'm surrounded by fields and farmland. Fields make up roughly 60% of land. 20% of this land houses cattle and 80% grows barley which no human will ever consume. It's only grown for the cattle I think it comes as no surprise that less land could produce more food for humans if the crops didn't have to pass through the cattle. Some farmers not far from here are growing quinoa. It has a very good nutritional profile and offers a more effective use of land.