You are what you eat
TheyEatWhat.com, explores the reality of feed at animal factories. Legal feed ingredients include diseased animal parts, feathers, manure, plastics, drugs, chemicals, and unhealthy amounts of grain. Some of these ingredients raise human health concerns. Others just indicate the low standards for animal feeds. All are symptoms of a system that has lost sight of the appropriate way to raise food animals.
If you aren't ready to go vegan then at least buy healthy ranch meat.