Ramadan : Fasting in Diabetics

Dr. Ravi Sankar Erukulapati Senior Endocrinologist, Apollo Hospitals, Jubilee Hills, Hyderabad
Dr. Ravi Sankar Erukulapati Senior Endocrinologist, Apollo Hospitals, Jubilee Hills, Hyderabad

The Holy month of Ramadan is here, this time in Summer. Fasting being part of this month for all those who follow Islam, it is pertinent for Diabetics who wish to fast to follow certain precautions in order to maintain their health and stay safe whilst fasting.

Firstly, it
is important to remember that those with significant health problems such as
poorly controlled Diabetes, Heart problems, Kidney problems and also pregnant
women to not fast for health related reasons. Religious texts exempt individuals
with Health issues, from fasting.

It is indeed
necessary for all Diabetics who wish to fast to consult their Doctor few weeks
prior to Ramadan month and check if they can safely fast during this month. It
is also important to do necessary blood tests at the same time to check if
those parameters are under control.

When we say
fasting during Ramadan, we need to remember that the fasting hours can be long,
for instance 4 am to 7 pm, during which it is not just foods that those who fast
avoid, but also water. This means that they are prone to dehydration. Hence,
the need to avoid hot weather and stay in cool places if one is fasting.

Doctors go through the medication and adjust them as per the person’s Glucose
control, considering other factors such as risk of low blood glucose with such
Diabetes medication.

It is
worth reminding that all medications used to control blood Glucose can lower
blood glucose which can be very dangerous if adequate precautions are not

Not taking
food for several hours during the fasting period can predispose individuals to
high risk of low blood glucose levels, and some medications have higher
tendency than others to cause low blood glucose levels.

Oral medications like Metformin, Dpp4 inhibitors, Pioglitazone, Alpha Glucosidase inhibitors are the safer of the lot in terms of their lesser tendency to cause low blood glucose compared to others.

Sulphonylureas which are commonly used to control
blood glucose levels have a higher chance of causing low blood glucose
and may need to be changed to safer alternatives. Another class of oral
medication namely SGLT2 inhibitors have a lower risk of causing low glucose, but have other
issues associated with their usage during fasting days, as they can cause
dehydration and increase acid content in blood; which means that they are
better avoided during the fasting days.

Coming to Insulin, the Insulin timings, doses and type of Insulin that is used may need changing during the fasting days.

Insulin analogues have a lesser chance of causing low blood glucose than the
older conventional Insulin types. Those who are already on Insulin and planning
to fast need to take extra care to avoid low blood glucose and also to prevent
gross fluctuations in blood glucose levels.

Insulin dependent Diabetics should not stop Insulin on their own as that may
lead to a dangerous Coma. Short acting GLP1 agonists are injectables used to control blood glucose levels and are safer
medications when it comes to Hypoglycaemia risk i.e., the tendency to
cause low blood glucose.

In those
Diabetics who fast after their Doctor’s advice, they still need to be vigilant
for any potential low blood glucose and check blood glucose using Glucometer in
case of any concerns. This apart, more frequent blood glucose checks are
recommended in order to monitor the trends and to seek medical attention as

Food plays a
crucial role in controlling blood glucose levels and more so during Ramadan. In
general, both fasting and feasting are not recommended for Diabetics. But as
fasting and feasting as part of festivities are common in this month, it is
important to not overindulge in food, especially foods that are rich in fats
and those that cause big surges in blood glucose.

instance, while breaking the fast in the evening, it is recommended to limit
the customary dates consumption to one or two. It is not uncommon to observe
that many put on weight due to the festivities by the end of the month.

It is
recommended to use brown rice, low fat milk, millets, whole grain Atta to make
Rotis, and limit the use of popular dishes like Biryanis, Haleem. While Fish
and Chicken are fine, provided they are not fried, Red meat has to be avoided
in view of the long term deleterious effects on health.

It is also
recommended to not consume too many Mangoes and other fruits. Fruit juices
are a No No.
It is worth discussing with a Dietician in detail about what,
when and how much to consume, which to cut down and what to avoid.

planning, education, counselling, awareness and individualisation stand as the
key pillars to a safe and healthy Ramadan in those with Diabetes who wish to
fast during this period.

Dr. Ravi Sankar Erukulapati


Hospitals, Jubilee Hills, Hyderabad.

(Note – This news is not a medical consultation in any case.You can not make any decision based on this news story. Do not become a doctor yourself, consult a qualified doctor.)

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