nutritional power of paper?

I'm starting to wonder if there is nutritional power in paper and if I should consider its contribution to Zoe's diet. Its not that we let her eat the paper, its that she does... This morning we ripped 5 separate instances of napkins from her hands, half eaten. We decided at some point we she just ignore her, that she was doing it for attention. But 1 minute later, she's tipping her head back and starts to choke on it.. seriously choke.. that was too scary, now she's off the paper, something we just can't ignore. Scary.