dancing-in-the-streets
My dog has this obsession with eating cardboard...Seriously, he loves it
a) is this bad for him?
b) does it represent some dietary need he's not getting from another source? I'm pretty sure there is no dietary value in cardboard, but my dog is really, really devoted to it and I don't know why.
Eating cardboard is not really good for your dog, so I would try to prevent it from happening, but it is not really bad for him either. The only thing I would be concerned about are the glues in the cardboard and it causing an intestinal blockage, but these are very remote possibilities.
If your dog is on a good commercial dog food, I cannot imagine what he would be seeking in cardboard, If he is not on a good food, it is possible, but not likely. The most likely thing is he thinks it is fun, so continues to do it. It is likely a boredom relieving activity for him, so I would recommend getting him a food or puzzle toy to enjoy while you are gone. This could help to ease his compulsion to chew inappropriate objects.
Hope this answers your questions, if not, post again!