That’s not a question I remember asking but apparently there’s a rule of thumb that works for pasta, bread, and rice, but not eggs. K. Aleisha Fetters:
As far as foods—pasta, flour, bread, you know the drill—go, brown is typically healthier than white.
But open your egg carton and that nutrition rule flies straight out of the fridge. Brown eggs and white eggs are, nutritionally at least, exactly same: about 70 calories, 6 grams of protein, and a generous helping of B vitamins.