Lemonade

Lemonade is, in addition to be being a sour juice, an item which can be found in most Pokémon games. In the ones it can be found in, it is always on the top floor of Department Store vending machines.

It recovers 80 HP of the Pokémon it is used on's health. In addition to this, it is also a key item to get passed Saffron gaurds in RBY and FR/LG.