Not only did it not contain Vitamin C, the product didn’t contain the fruit juice being advertised:

“To their surprise, Ribena, a supposedly highly nutritional fruit drink made by UK-based GlaxoSmithKline, contained no vitamin C, although the product label stated “the blackcurrants in Ribena have four times the vitamin C of oranges.” Interestingly the students learned that not only was the drink void of vitamins, it did not contain any blackcurrants.”

Hugely embarrassing and likely to be very costly.

jb says: Makes them big and strong, Robert. They used to give it to us in our bottles, when we were babes, see if our first teeth could withstand the attack of an acid bath.