Cardboard Blocks Should I Be Concerned That My Horse Just Ate A Big Piece Of Cardboard Of The Lick Block?

Should i be concerned that my horse just ate a big piece of cardboard of the lick block? - cardboard blocks

very unlikley unless there is a chemical in plastic covers on the field
Rember is made of cardboard and the tree is shaved and scraps of paper that horses often beds, I always keep an eye on him and see if the strange behavior