I actually used to love nutmeg. There seems to be a sweet spot when it comes to the dosing. If you take too much, you way too high and your body dries up. Too little and you feel nothing. But at doses where you are only mildly intoxicated, nutmeg gave me a mood lift, the most intense music euphoria I've ever had, and gave me that wondrous, excited-bout-life feeling I get from traditional hallucinogens.
I bet it's much more than just anti-cholinergic.