Buy foods with the USDA organic seal which ensures higher standards and quality
Ignore labels that use buzz words like "natural" or "healthy". There are no regulations for using words like this on food packaging.
At the Farmers Market: Sometimes, local farms do not have the funds to purchase the expensive USDA organic seal, but they follow the same practices. Speak up and ask the farmer! They are happy to talk to you about their food. Often Amish chicken falls in this category.
When dinning out: Go Portlandia style and ask your server about the quality of the meat on your plate. Be prepared to consider going veg if necessary. Just asking let's the kitchen know that their customers care about where their meat comes from and can help promote them to start sourcing differently!