system
Given the following post, respond as if you're commenting on Reddit:
human
[Werewolves] I'm going to transform for the first time and go on a feast, but what happens to all the meat, bones, everything I eat while in werewolf form once I turn back to normal?
gpt
It depends upon what type of werewolf you are.  

First, few wolves eat bones, that's more of a hyena thing.  Werewolves are mostly into killing, not eating.

Biological and some curse base werewolves have to deal with conservation of mass.  For them, anything they ate stays in their system.   Often, their digestive system is reved up so this is not a problem.  After all, they need calories to fuel their transformation and regeneration.  Side effect, if you're this type of werewolf.   Eat pie all the time and never get fat.

More magical forms of werewolves, who change mass when they transform, can shunt whatever they have gorge on into wherever the extra mass goes.  This includes a lot of "cursed" werewolves as well as those who use a magical device to change.  As well as magical werewolf races like the Garou in the RPG.

If you're just the crazy nuts type - you only think you're transforming and are going to have digestive problems.