Deep within the island lies a vast complex, run by Jacob. In a section called Dharma Initiative Food-Research and Development, is a factory that makes only one candy. Imbued with the subtle essence of the island. Using ingredients grown in and around the island, with an unusual amount of natural ingredients which can enhance one's abilities, tapping in to any latent super-natural talents within the candy consumer. The Apollo bar, if eaten in huge quantities, like say by Hurley, perhaps; can give that person a few super powers. Hence its name, and origin are revealed. Secretly sold worldwide, the candy bar helps the island find its chosen people.