Does having diabetes or another chronic illness exempt someone from fasting?

Illness that makes fasting genuinely harmful is a recognized excuse to break the fast, based on the Quran's permission for 'one who is ill' to make up the days later (2:185). For a temporary illness — an infection, a short recovery period, a controlled condition — the ruling is straightforward: break the fast when needed and make up the days once healthy. Diabetes complicates this because it varies so widely. A person with mild, diet-controlled type 2 diabetes may be able to fast safely with medical clearance, while someone on insulin with a history of hypoglycemia may face real danger from fasting. Islamic law does not ask believers to gamble with their health; the concession in 2:184 for those unable to fast reliably — feeding a poor person per day instead of fasting — applies to a chronic condition unlikely to improve. The practical guidance most scholars give is to consult a knowledgeable and trustworthy physician: if fasting poses a real risk such as severe hypoglycemia, dehydration, or organ strain, fidyah is due instead of the fast; if fasting is medically safe, the normal obligation and its qada stand. This is a case where medicine and fiqh work together rather than in tension.

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