Mario & Luigi: Bowser's Inside Story/Items

Bowser
Restores 80 HP.
 * Spicy Chicken

Mario & Luigi
Restores 30 HP. Restores 20 HP to both Mario and Luigi. Revives a brother with half of his HP. Revives a brother with full HP.
 * Mushroom
 * Nut
 * 1-Up Mushroom
 * 1-Up Deluxe

All
Restores 10 SP. Allows you to retry the current battle from the start with full HP and SP if you die.
 * Syrup Jar
 * Retry Clock