Hoaders Hunger

Maybe I have missed something but how does a hoarders hunger go down? Or does it reset to 0 at the beginning of each session? I know it says you start with 0 hunger but I read that as beginning of the game play, not start of each session. Then you start and pull things from your hoard and the MC can hold things you need to get but if you don't by the end of the session it adds to the hunger but if you do get it it doesn't reduce hunger so how do you lower hunger? Just adding things that are themed for your hoard?

Thanks!

Whenever the MC spends their hold, (the amount of hold is determined at the beginning of the session with a die roll) the hunger goes down down by 1. 

You are confusing the the statement "give your hoard -1 hunger" as an addition.  The negative sign means that the hunger goes down.