Fasting and abstinence of the Coptic Orthodox Church
The Copts (Christians of Egypt), who belong to the Coptic Orthodox Church, observe fasting periods according to the Coptic calendar. In Coptic Orthodox Christianity, fasting is traditionally defined as going without water and food from midnight to sunset; after that time, the consumption of water and one vegan meal is permitted.
Source: Wikipedia — Fasting and abstinence of the Coptic Orthodox Church (CC BY-SA 4.0)