Fasting on Yom Kippur and Medical Concerns

Fasting on Yom Kippur and Medical Concerns

This coming Tuesday night/Wednesday we have our holiest day of the year, Yom Kippur. This solemn day of atonement is a day when our sins of the past year are forgiven and we begin afresh with a blank slate. There are a number of things that we must be very careful of on Yom Kippur. The 5 no's of Yom Kippur are no eating and drinking, no leather shoes, no anointing, no bathing and no marital relations. The idea behind these restrictions are that all of those things represent our physical needs. On Kippur we are focusing on our spiritual side and almost trying to be like angels without any physical needs or desires whatsoever. 

Fasting has long been considered part of the atonement process and that this should never be taken lightly. Anyone with medical concerns should consult their doctor and rabbi before Yom Kippur to assess their situation. It is not appropriate to consider a person who eats because of medical necessity as a sinner.

It goes without saying that elderly men and women who have been told by their doctors that fasting on Kippur will cause adverse affects to their health are neither required nor permitted to fast (see Shulkhan Arukh O.H. 618). 

However, there are many of us who in different times of our lives have problems fasting. For example, pregnant women, nursing mothers and those with diabetes to name but a few. These people do not get a blanket exemption from fasting on Yom Kippur. Fasting isn't meant to be easy but at the same time we are not allowed to put our lives in danger (hence the exemption for extremely elderly and infirm people).

Many doctors recommend that pregnant women should never fast, but the studies as yet are inconclusive in providing proof that fasting causes any problems to the mother or child. Indeed, provided that the woman drinks plenty of water before the fast there should be no issues for a healthy woman. As such  a healthy pregnant woman must fast on Yom Kippur (See Shulkhan Arukh O.H. 617). 

However, a woman in a high risk pregnancy should consult with her doctor and discuss the situation with her rabbi. Nursing women are also obligated to fast and they should express extra milk before the fast to have available for their children. Staying well hydrated and being well prepared should ensure that the fast should pass without problems. Women who have recently given birth should consult their rabbi.


If a person takes a daily tablet(s) such as blood pressure medicine. It is permitted to take it on Yom Kippur but don't take it with water. Recently I was contacted about a person with diabetes, who assumed since he had been recently diagnosed as a type 2 diabetic he would have no choice but to eat on Yom kippur. The truth is that is simply not the case. Indeed there are many religious Jews who have diabetes and fast on Yom Kippur. For more information for those with diabetes about how to fast on Yom Kippur and those who just want to read the article please click here. 

There are situations where a person can be instructed by their rabbi to eat and drink very small amounts of food or drink with a timed space in between. What is known as eating in shiurim/measurements. To conclude, there are circumstances where fasting on Yom Kippur would be a sin so please call if you have any concerns.

Tizku LeShanim Rabot and have a meaningful fast.