Brainberry

Up to ten brains appear in your hands and are fresh for the spell duration. A creature can use its action to eat one brain. Eating a brain provides enough nourishment to sustain an illithid for one month and grants 1 hitpoint - which most often is visibly improving the skin of the illithid.

The brains lose their potency if they have not been consumed within 24 hours of the casting of this spell.