Answer:
I can be thin but not fat; in your body but never on your placemat. I'm always better when I'm fresh but you'll never see me in the flesh.
Of the king I am blue and of the peasant I am red. Of the frog I am cold and of the dog I am hot instead.
What can you lose that will cause other people to lose theirs too?
You throw me out when you want to use me, but take me in when you donβt want to use me. What am I?
I am carried by mad animals.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.