Do I have to fast during Ramadan if I have diabetes?

Illness is a clear exemption

The Quran says that whoever is ill may make up the fast on other days, and those who can only fast with great hardship may instead give "a ransom [as substitute] of feeding a poor person [each day]" (Quran 2:184).

Scholars agree: if fasting could seriously harm your health, it's not required, and some say it becomes forbidden.

Talk to your doctor first

Specialist guidelines on diabetes and Ramadan sort patients by risk. In general:

• Higher risk: type 1 diabetes, frequent hypos, recent hospital stays, pregnancy, kidney problems. Usually advised not to fast.
• Moderate risk: well-controlled type 2 on certain medications. Often able to fast with adjusted doses and close monitoring.
• Low risk: diet-controlled type 2. Usually able to fast.

See your doctor a few weeks before Ramadan to plan medication timing.

If you do fast

• Check your blood sugar; finger-prick tests don't break the fast.
• Break the fast immediately if your sugar drops too low or goes very high, or if you feel unwell. That's not a sin; it's what Islam asks.
• Eat a balanced suhoor late and avoid overeating at iftar.
• Drink plenty of water between iftar and suhoor.

If you can't fast

• Temporary illness: make up the days later when you're well.
• Long-term condition: if you'll never be able to fast safely, give fidya, feeding one poor person for each missed day. Many mosques and charities collect it for you.

Not fasting for health reasons doesn't make you a lesser Muslim. You can still pray at night, read Quran and give charity. For other fasting questions, see Can I brush my teeth while fasting?