Millions of people around the world choose to fast for religious observances or for health reasons.
For people with diabetes, however, there are potential risks associated with fasting.
People with diabetes who make the personal decision to fast should do so after careful consideration of the associated risks following ample discussion with their treating physician.
Less than 60 mg/dL (3.3 mmol/L)
Less than 70 mg/dL (3.9 mmol/L) in the first few hours after the start of fasting
Higher than 300 mg/dL (16.7 mmol/L)
Merck has developed The Facts About Fasting program to support people with type 2 diabetes who fast during Ramadan.
Read the Facts About Fasting During Ramadan information kit.