The risen Christ breaks bread in Emmaus and then eats fish in Jerusalem. Easter, or at least the first Easter as Luke describes it, is not as much about an empty tomb as about food. Jesus spends Easter Day eating. His followers celebrate Easter not at an empty tomb, but around a table. So we might consider Easter as a multicourse meal rather than a trip to the empty tomb, and experience resurrection by eating.
My first encounter with Christian fasting was in a Russian kitchen in the provincial city of Krasnodar in 1991. It was November and my host, a university professor, was preparing the evening meal at the beginning of the Orthodox fast called Little Lent, which is a bit like what Catholics and Protestants call Advent.
The Marmite centennial in Britain prompts me to develop a thesis: National or creedal groups tend to keep their boundaries strong by pretending to like foods that others find distasteful. Through long conditioning, members find it possible to tolerate the taste of their chosen food.