Then what is the stuff in the photo I posted? And why was it only allowed in pet food until recently?
I don’t normally do people’s research for them, but I dropped the image into images.google.com.
Mechanically separated chicken would be what your image is.
To answer your second question, I would guess that the concern was probably had more to do with how sensitive dogs and cats liver are to any foreign chemical.
For example many human food products use PG, propylene glycol, as a food additive. Totally safe for humans, totally safe for dogs (at certain limits), can cause death in cats.
We humans are pretty hearty in the liver department, probably because we are intelligent and probably tasted everything under the sun, meaning our genetics have been refined to have wide-spectrum livers.
Also, we can do shots of Jack Daniels all weekend long, and still not turn yellow if we layoff of it during the week.
BPI’s product is not pink and it is not slime. The photo you posted shows packing styrofoam being poured into a box prior to fitting.
Congrats on succumbing to an internet hoax. BPI has it worse off. Oh, and I also have to pay more for ground beef.