Caspian Healthcare
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DIABETES AND RAMZAN

Fasting with diabetes, safely

Most people with diabetes can fast. Some cannot do it safely, and a few should not attempt it at all. Knowing which group you are in takes one appointment.

Dr. Khizer Hussain Junaidy · Diabetologist & Bariatric Physician · consultation ₹400

Come six to eight weeks before Ramzan. Ramzan is expected in February 2027, subject to moon sighting, which puts the assessment window around December 2026. This is not a formality: if your treatment needs rearranging, it needs doing with time to see whether the change works, not on the first night of fasting.

Which group are you in?

The groups below are the standard way this is assessed internationally. They tell you how urgently you need reviewing. They are not a verdict on you personally, and the boundaries are not as clean in real life as they look on a page.

Fasting is medically dangerous

If any of these apply, fasting carries a serious risk of harm and we will say so plainly:

  • A severe low in the last three months, one where you needed someone else’s help
  • Diabetic ketoacidosis or a hyperosmolar crisis in the last three months
  • You no longer feel your lows coming
  • Repeated lows
  • Type 1 diabetes that is not stable
  • Advanced kidney disease, or you are on dialysis
  • Pregnancy with diabetes that is not well controlled
  • Any acute illness during the month

High risk: fasting only after review

  • Type 2 diabetes that is poorly controlled
  • Moderate kidney disease, or established heart or vascular disease
  • Living alone on insulin or on tablets that push insulin out
  • Older age with other illness
  • Physically demanding work through the fasting hours
  • Medicines that affect alertness or judgement

Usually able to fast, with a plan

  • Well-controlled type 2 diabetes on diet alone, or on medicines that carry little risk of causing a low
  • No complications and no recent lows
  • Able to check your sugar during the day and willing to do it

Even here, the plan matters: what changes, what stays the same, and what you do if a reading goes wrong.

On religious exemption

Islam provides exemption from fasting for illness, and the rules around making up missed fasts or offering fidya are a matter for a scholar, not for a doctor. What we can do is tell you honestly what the medical risk is, so that you and whoever you consult are deciding with accurate information rather than optimism.

Break the fast if any of these happen

  • Your glucose is below 70 mg/dL: break it immediately, do not wait to see if it settles
  • Your glucose is above 300 mg/dL
  • You feel shaky, sweaty, confused, unusually weak, or your heart is racing
  • You feel faint, or your vision goes strange
  • You become unwell with vomiting, fever or diarrhoea

A fast broken to treat a low is not a failure. A severe low can cause lasting harm, and there is no emergency department here to catch it.

Most religious authorities hold that a finger-prick glucose test does not break the fast. If you are unsure, ask your own scholar, but do not stop checking because you are unsure.

What usually changes, and what does not

We will not print doses on a web page. What follows is the shape of the conversation, so you know what to expect.

Suhoor, iftar and the hours between

Suhoor

Eat it, and eat it as late as is permitted. Skipping suhoor lengthens the fast by hours and is one of the commonest reasons people run into trouble by afternoon. Favour things that release slowly (whole grains, dal, curd, eggs, paneer, vegetables) over white rice, white bread and sweet tea.

Iftar

Break with dates and water, as is traditional, then pause before the main meal. The pause is the useful part: it lets you notice you are full before the plate is refilled. The commonest glucose problem in Ramzan is not the fast; it is the three hours after breaking it.

Fried items, sugary drinks and dessert in the same sitting will produce a spike that no medicine will comfortably absorb. Not forbidden. Just not all in one evening, every evening.

Water

Hyderabad in February is mild, but the fasting hours are still long. Drink steadily between iftar and suhoor rather than all at once, and go easy on strong tea and coffee, which make you lose more.

Tarawih counts as exercise

An hour of standing and prostration is real physical activity, and it comes after a large meal. That combination is where lows sometimes appear in people on insulin. If you pray Tarawih, mention it. It changes the plan.

Checking your sugar during the month

Check more often than usual, not less: before suhoor, mid-morning, mid-afternoon, before iftar, and about two hours after iftar. The mid-afternoon reading is the one that catches trouble early.

A glucose sensor is particularly useful in Ramzan. It shows the whole daylight curve without a single finger prick, catches the overnight and pre-iftar dips that spot checks miss, and settles the argument about whether the problem is the fast or the meal that ends it. How continuous glucose monitoring works →

After Ramzan

Come back. Doses that were changed for fasting need changing back, and the ones that were reduced are the ones most likely to be forgotten. Eid week, with its own eating pattern, is not the moment to assume everything has returned to normal by itself.

Vomiting with very high sugars and rapid deep breathing, drowsiness or confusion, or a low that someone else had to treat: call 108 or go to the nearest hospital with emergency facilities. Do not wait for morning, and do not come here first: there is no emergency department, no operation theatre and no intensive care unit at Caspian.

Book the assessment

Mon–Thu and Sat, 9 am–1 pm and 3–9 pm. Fri, 3–9 pm. Consultation ₹400, including a capillary glucose check and a diet consultation with our dietitian, who will build the suhoor and iftar plan around what your household actually cooks.