There's a supernatural masquerade, with vampires and witches and werewolves living among us, and all sorts of mundane regulations are just their influence on the government.
You think fluoride in our water supply is for our teeth? Bah! It's a vital mineral nutrient for the goblins and dwarves from the Underdark. They have a treaty with the surface governments to allow them to easily adjust.
I believe that since at least the late 1800s with the prototype of the modern vampire, the novel Dracula described vampires eating solid food.
Granted it was mostly done by a crazy vampire, but he didn't seem the bare any I'll effects for the effort.