Low sugar or hypoglycemia can occur if there is a mismatch between the calories that you consume and utilization of the same. In subjects with diabetes, fasting for 12 hours without any consumption of calories makes you prone to developing low sugars. This is more common if the subject is on medicines like sulphonylurea(Glimiperide, Glibenclamide, Gliclazide, Glipizide) or on insulin.
If you are on any such medicines, you need to meet the doctor and adjust the doses so that there is no increased risk of hypoglycemia. Despite adjustments of medication doses, we suggest regular monitoring of blood sugars during the Ramadan fast.