Orange juice

From Memory Alpha, the free Star Trek reference

Orange juice is a type of beverage made from the juice of an orange, an Earth fruit. On Earth, orange juice can often be found served with breakfast.

Orange juice was served on board Enterprise. (ENT: "Cold Front")

Jake Sisko enjoyed orange juice for breakfast aboard Deep Space 9, often with his bowl of oatmeal. (DS9: "The Nagus", "The Muse") While living with Nog, he once ordered himself an extra large glass of orange juice, claiming that is was "a healthy way to start the day." (DS9: "The Ascent") By late 2372, he had began to experiment with different beverages for breakfast, and changed his usual order for orange juice to an order of raktajino, extra sweet. (DS9: "For the Cause")

After Rom ordered Chief Miles O'Brien's breakfast of choice in 2373, Quark sarcastically asked him what was he going to order next, orange juice and coffee, an idea that actually appealed to Rom. (DS9: "The Assignment")