Of course they didn't.
Back in my day it was red dye # something or other. Of course after scaring everyone half to death about almost everything red, they finally admitted you would have to eat a train car load of the dye.
Heck...I’ve known this for a long time. We took my grandson off of any foods containing red dyes when he was 2 because he was so hyper, he is now 9.
I tried reading this article, but I got distracted by my juicy drink and . . . hey, I wonder what’s on TV?
Well that’s just great. I suppose I’ll learn of some additives in my kids’ Red Bull now.