Super Mushroom

A Super Mushroom is a red mushroom that allows Mario to grow to an enormous size once he eats them.

In relation to Mario Kart, a Super Mushroom (also known as a Golden Mushroom) is an item that gives an infinite amount of Mushroom speed bursts in 7 - 10 seconds.

In Mario and Luigi: Superstar Saga, Super Mushrooms restore 50 HP to whoever eats one.