"I have no taste for corruptible food nor for the pleasures of this life. I desire the bread of God, which is the flesh of Jesus Christ, who was of the seed of David; and for drink I desire his blood, which is love incorruptible."I have no doubt that he had his thoughts set on the incorruptible food that is Jesus Christ while he became corruptible food for the lions! For more information on the Real Presence in the Eucharist, go here.
For more information on St. Ignatius of Antioch, go here or here.