It’s hard not to notice that Christians who have survived for centuries in persecution hot spots tend to have the most hard-core fasting calendars. Coptic Christians in Egypt follow a supersize version of the Orthodox calendar. It covers 210 days of the year and is sometimes strictly vegan, or even water-only. The Ethiopian Orthodox have some kind of fast 250 days a year (out of a total of 365)! Some of these are water-only fasts.