Today is the beginning of the Nativity Fast. Whenever any fasting period begins I get the inevitable question. What are the fasting rules? So, rather than giving you my opinion, let me cut and paste directly from the website of the Antiochian jurisdiction. I trust this will help you during this coming fasting season.
The Nativity Fast is one of the four Canonical Fasting Seasons in the Church year. This is a joyous fast in anticipation of the Nativity of Christ. That is the reason it is less strict than other fasting periods. The fast is divided into two periods. The 1st period is November 15th through December 19th when the traditional fasting discipline (no meat, dairy, fish, wine, and oil) is observed. There is dispensation given for wine and oil on Tuesdays and Thursdays. Similarly, fish, wine, and oil are permitted on Saturdays and Sundays. The 2nd period is December 20th through 24th when the traditional fasting discipline (no meat, dairy, fish, wine, and oil) is observed. There is dispensation given for wine and oil only on Saturday and Sunday during this period. Here are the guidelines:
Meat Dairy Fish Wine Oil beef, chicken, pork, turkey, elk, veal, lamb, deer, rabbit, buffalo, and so forth milk, eggs, cheese, butter, yogurt, cream, and so forth fish with a backbone (not including shrimp, octopus, shellfish, squid, or other seafood. (some include all types of alcohol in this category) (some include all types of oil in this category) Abstain. Abstain. Permitted only on Saturdays and Sundays before December 20. (some permit fish Tuesdays and Thursdays also) Permitted only on Tuesdays, Thursdays, Saturdays, & Sundays before December 20. Permitted only on Tuesdays, Thursdays, Saturdays, & Sundays before December 20.
Abstinence includes refraining from the food and drink mentioned above, as well as from smoking. The Eucharistic Fast means abstaining from at least the previous midnight for communing at a morning Liturgy.