Eucharistic Miraculous Fasts. These articles have reviewed many different kinds of genuine miracles associated with the Holy Eucharist – the Body and Blood of Christ Jesus. Another kind of Eucharistic miracle is where God’s grace physically sustains a person with no other food than solely the Eucharist. Following a vision of the Lord Jesus, St. Catherine of Siena, Italy (d. 1380) no longer required food for her sustenance. Her confessor and biographer, Blessed Raymond of Capus, wrote that if she was required to take food, it would not stay in her stomach and she had severe pains. In fact her prior confessor had required her to take food daily, but always she had the same result of vomiting with considerable pain. Finally she asked him why he keeps on commanding her when always there was the same result. He replied, “Henceforth act according to the inspiration of the Holy Ghost, for I perceive that God is accomplishing marvelous ...