"However, rumours started circulating about its other detrimental effects. Verity Bowman, a University of Leicester fourth year, said: “My mum never let me drink it because it was in the news that a girl turned yellow. That’s true, right?”
There was a particularly unsavoury rumour, as Verity mentions, that a girl turned yellow. The sad reality is that it actually happened.
In 1999, a four-year-old girl in Rhyl, Wales, turned a yellow-orangey colour after overdosing on the Beta-carotene in the drink. To be fair, she was drinking 1.5 litres of the stuff a day but this was the straw that broke Sunny Delight’s back." -
https://thetab.com/uk/2016/06/10/whatever-happened-sunny-delight-1810