From the Super Mario Wiki
Additionally, Koopa-Kola is shown in The Super Mario Bros. Super Show! episode "Karate Koopa," where it is drunk by Karate Koopa and his minions at a short celebration party. However, it receives little more than a brief mention and is only seen very briefly.
Koopa-Kola is mentioned a few times in Nintendo Adventure Books. It is featured prominently in Unjust Desserts where a shrunken Mario finds a virtual lake of the stuff inside Yoshi's stomach. If he tries to swim across, the Koopa-Kola congeals into sticky crystals all over him.