Ice Cream gives a boost of 50 when eaten, the highest of all Food items, tied with Lobster Dinner from the Shipwrecked DLC and Jelly Salad from Don't Starve Together. In addition, it decreases the player's perceived temperature by 40 degrees for 15 seconds when consumed, this can make it useful for the Summer, when Overheating is a constant threat. It can also be useful for recovering from the Sanity loss if one has survived a long fight with the Dragonfly during that season.
Ice Cream is also included in the Shipwrecked DLC, as Ice can be obtained by using an Ice Maker 3000, or by RefiningHail. It can be used to deal with Overheating during the Dry Season or Sanity loss caused by Wetness.