Lembas bread is a special type of bread from J.R.R. Tolkien's fictional world of Middle-earth. It is made by the Elves and is known for its ability to sustain travelers on long journeys. Wrapped in leaves, lembas is both nutritious and filling, providing energy for those who consume it. In the stories, lembas is often given as a gift to adventurers, symbolizing hope and support. Its unique properties allow a small piece to keep a person energized for an entire day, making it a vital resource for characters like Frodo and Sam during their quest in The Lord of the Rings.