You got me. Now that you opened my eyes, since I love Mountain Dew I'm going to reverse engineer that shit and make it cheaper and exactly the way I like it for myself at home.
Umm no. Not everything has to be listed on the product if it's natural unless it is known for extreme allergies like nuts. There is a such thing as people and companies wanting to protect their recipe so for example they won't list literally everything for a bottle of barbecue sauce because they don't want others copying it.