Next time you (if you ever) pick up a meal from Burger King, look at the way they advertise what drink you should get on the big menu.
With dark meats, perhaps a Coke will taste best. With chicken, you’d probably prefer a Sprite. Fish? A diet coke. And Dr. Pepper for the big motherfuckers.
Kind of like how you drink red wine with red meats, white with white meats, and for the sake of argument, rosee with fish, BK matches their sodas as if it actually makes the meal taste better as a whole.