Chocolate Milk. Like the milk, but when drunk will remove only bad effects.
Can be created in a Cauldron

@Insane-96 the mod bird's foods has what you're looking for , several instances of the effect you're after actually.

I cannot see myself adding this specifically. Part of the weakness of milk is it removes positive effects, cocoa beans are much too cheap to remove that weakness. I could see myself adding chocolate milk in the future, just not with this specific function