What's so appetitizing about Sand???

I love my little boy! I do! Adore him! Fawn over him! But sometimes he does the strangest things!!!

He's playing in his sandbox with his best buddy and she's playing happily, but all he wants to do is eat the sand!!! He even dipped his pacifier in it! Like it was some sort of exquisite sauce. I mean ewww!!! The thought of even one tiny grain of sand getting in my mouth gives me shivers of ickiness!!!

Aww...but doesn't he look cute doing it!?