Fasting, Festivals and Observance
Reviewed by CDE Mehandi Sharma · Updated
Fasting is part of ordinary life for many families — Navratri, Karva Chauth, Ekadashi, Ramadan and others. With LADA the important point is that the risk is not fixed. It changes as your treatment changes.
On metformin alone, fasting is generally low-risk, because metformin does not force insulin release.
On a sulfonylurea or on insulin, fasting becomes genuinely risky. Those treatments lower your blood sugar whether or not you have eaten, and a long fast without an adjusted dose is the classic setup for a severe low.
There is a second risk that grows over time. As your own insulin production falls, going long periods without insulin can allow ketones to build up, which can lead to diabetic ketoacidosis — a medical emergency.
If you do fast with medical agreement: check your blood sugar more often, not less; break the fast immediately if you go low or feel unwell; eat properly and drink enough when the fast opens; and avoid fasting on a day you are ill.
Where fasting is not safe, most traditions recognise exemptions for illness, and many families are more accommodating than people expect. Partial fasts, shorter fasts, or fasts kept by other members on your behalf are all common alternatives.