Congratulations on finishing the game!
Honestly we approached the health restoring from every angle - make it so the oasis heals you (it should, it doesn't, it's bugged) - make it so there's an NPC that always heals you back to health in the kitchen (this felt clunky) - the only area where you can heal back up after defeat is with the banana and that was hastily patched to just send the player back to the credits screen to prevent a crash on failure.
Everything is very much held together with duct tape.
What never occurred to us was just auto-healing the player and getting rid of the can entirely. That would've saved us so many issues. Unfortunately by the time we were discussing it we had half a day left and all the dialogue to write.
We hope you enjoyed the game. Lance is looking over the code to do some post-jam fixes, and I think your feedback of just healing the player will be useful.
Thanks for playing and your thorough feedback!