Life Fruit

The Life Fruit permanently increases the player's maximum health by 5, turning one of the player's life hearts golden. This can go beyond the 400 health cap of the Life Crystals, but can be increased to no more than 500 (at which point every life heart is golden). They only spawn in the Underground Jungle in Hardmode and can only be used once a player has reached the 400 health cap from Life Crystals. The Life Fruit, similar to Chlorophyte Ore, has a chance to regrow in the Underground Jungle, making it possible to farm an infinite amount of life fruit in the same world.

Trivia

 * The plants on which the fruit grows have three different skins they can appear as, unlike the single type of skin that Life Crystals have.
 * They can be harvested with a sword, like other plants, instead of needing a pickaxe.
 * They glow when the player is under the effects of Spelunker Potion.
 * You'll need a total of 20 Life Fruits to reach the 500 max health.
 * The Life Fruit looks much like the Heart Container from the Legend of Zelda series, giving more health to Link, the protagonist of the series.