The images of cattle living among the gently rolling hills of a garbage landfill turned many Chinese stomachs. More specifically, viewers worried that they might have eaten beef from one of the animals raised on this sort of garbage diet.

One of the main health concerns associated with eating such meat might be due to mercury, or other chemicals. These are present in many electronics and other throwaway items, and might leach into the organic waste that the cattle feed upon.

From there, chemicals can contaminate the whole animal and then affect its ultimate human consumer.

And there are a host of other potential health dangers.