Listed in the ingredients is "microcrystalline cellulose", also known as wood fiber. Fast-food chains have been using this for quite some time due to the cost effectiveness.
This is also not just in meat, but in all sorts of ingredients like cheese, sauces, etc."
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You can find decent cheese in the US but you have to look hard and it's usually imported. Good bread is even harder to find.
Not real hard to find good cheese if you live in Wisconsin. Just need to look for the small cheese companies.