Stop buying anything with the words "mechanically separated" meat of any kind in the ingredients. It's super nasty. It's terrible for you and your health. I'm not even mentioning the other ingredients that probably come along with eating such meat concoctions.
I love this video from Jamie Oliver's Food Revolution. Watch all the way to the end. It's shocking that the kids still eat the nuggets.
Read labels. Look for meats that have little ingredients. Ones you can pronounce and understand exactly the type of meat and parts you are eating.
Educate your children on this matter. Educate your family.