The packet contains silica dioxide, which is non-toxic. The only reason the bags make such a big deal about not eating them is to make sure you don't mistake them for food they might be packed with, and because the bag itself is a potential choking hazard.
Presumably similar to if you ate a comparable amount of really clean sand. Can't imagine it feels great coming out but otherwise just takes up space as it goes through your body.
She didn't eat the jerky she pulled the empty bag out of the garbage. Also when I googled it since it was worried it also said it would make her thirsty and not harm her .