Well Fed

 is a buff granted to the player upon consuming a Bowl of Soup or a Cooked Marshmellow. The buff slightly improves all stats (listed below). This lasts for 10 minutes, but can be cancelled at any time by right-clicking the icon.

The following stats are affected:
 * +2 defense
 * +2% critical hit chance on all attacks
 * +5% melee speed
 * +5% melee damage
 * +10% magic damage
 * +10% movement speed

Trivia

 * The  buff and the Clairvoyance buff have the longest duration in the game.
 * Although the buff is granted by consuming a Bowl of Soup made out of Mushrooms and Goldfish or a Cooked Marshmellow, the buff icon is of a roast chicken.