What to know about gestational diabetes while fasting in Ramadan

Fasting changes when you eat, drink, check glucose, and take medicine. Pregnancy also changes insulin needs over time. With gestational diabetes, long gaps without food or fluids may lead to glucose readings outside your agreed range, dehydration, or difficulty meeting nutritional needs. Religious exemptions for illness or pregnancy may apply; discuss your health and religious concerns with your maternity team and a trusted qualified adviser.

Speak with your obstetric or diabetes team before Ramadan, not after symptoms begin. Agree whether fasting is medically appropriate, when to check glucose, how to adjust prescribed medicine, what balanced suhoor and iftar meals should contain, and how to maintain fluids during non-fasting hours. Keep supplies with you and do not change medicine or skip monitoring without instructions. If your team advises against fasting, follow that advice and ask about alternatives.

Break the fast and follow your clinician's instructions if glucose is too low or high for your agreed limits, or if you feel shaky, sweaty, confused, faint, unusually thirsty, or unable to continue safely. Seek urgent help for collapse, persistent vomiting, severe weakness, severe abdominal pain, bleeding, or reduced baby movement according to your maternity unit's guidance.

Ask whether fasting is suitable for your pregnancy, which readings require breaking the fast, how meals should be timed, and how medication changes would work. Confirm who to call during fasting hours and how the baby's wellbeing will be monitored.