Bottomless Gluttony

The target must make a Charisma save or become overcome with an irresistible and insatiable hunger. On a failed save the target will spend all of its waking time either eating, or looking for something to eat. No matter how much the creature eats it cannot become full or satiated, and will begin to suffer from malnutrition after 3 days. The creature will gain a stacking level of Exhaustion each day after the 3rd until the spell is broken or the creatures dies from malnutrition.

If a creature affected by this spell is in combat it will only take the Move and Dodge action to try and avoid being injured while eating or looking for something to eat. If the creature does not have anything to eat, and has reason to believe that another creature does, or is food, it will become hostile, and attack that creature. 

At the end of each Long Rest the afflicted creature can retry their Charisma saving throw, breaking the spell on a success.

This spell can be broken by a Remove Curse spell, and the effects can be halted for 24 hours by consuming a Goodberry.