So you can’t fast this Yom Kippur: you are pregnant, a diabetic, you have an eating disorder, you have medications that cannot be taken without food.
Thank you for taking care of your body. That is a mitzvah, did you know? The Hebrew for it is Lishmor HaGuf, “to guard the body.” It is just as important a mitzvah as any other, including the Yom Kippur fast.
So how can you observe the holiday, if you must eat or take water? Here are some ideas:
FASTING IS NOT JUST FROM FOOD Traditionally, we refrain from several things during the 24 hours of Yom Kippur: eating & drinking, sex, anointing, washing, or wearing leather shoes. If your health dictates that you must drink and/or eat, you can still refrain from the other things. It’s just not as cool to complain about them in public.
ATTEND SERVICES The Yom Kippur services are some of the most moving of the entire year. From Kol Nidre in the evening to Neilah the following evening, the services carry us on an arc of spirituality and emotion that must be experienced to be understood. Too few Jews avail themselves of the full experience.
EAT PRECISELY What I mean by “eat precisely” is eat exactly what you are supposed to eat, no more and no less. If your doctor has given you a diet, have you ever stuck strictly to it for an entire 24 hours with no little cheats? If you are supposed to eat 5 vegetables, eat 5 vegetables. If you are supposed to leave refined sugar alone, leave it alone. If you are supposed to eat 3 balanced meals, don’t wimp out with only one or two. Following doctor’s orders exactly is a discipline, too.
USE THE DAY FOR SERIOUS REFLECTION The larger purpose of Yom Kippur is to examine our lives, individually and communally, and to seek out ways to be better Jews and better human beings. You can do this whether you fast or not.
USE THE DAY FOR PRAYER “Prayer” can take a lot of forms. If you are uncomfortable with the words in the machzor (prayer book), you have two choices: (1) you can let them float on by you and say your own prayers or (2) you can struggle with them and think about why they bug you. That’s a form of prayer, too. I wrote an article a while back on options in prayer: New to Jewish Prayer? Ten Tips for Beginners. See if anything there appeals to you.
One other thing: as a kindness to other Jews, eat or drink out of their sight. Slip out to the car for your packed lunch, or go home for meals. Don’t carry a water bottle around if you can possibly avoid it. Rachmanes [mercy] is a mitzvah, too.