How long do I need to fast before an endoscopy?

The fasting time depends on the type of endoscopy you are having.

• Upper Endoscopy (EGD): Typically, you will need to fast for 6 to 8 hours before the procedure. This means no food or drink, including water. Your doctor will provide specific instructions.
• Colonoscopy: The preparation for a colonoscopy is more extensive and involves a special diet for a few days before the procedure, followed by a liquid-only diet and a bowel-cleansing solution. The final fasting period for a colonoscopy is usually similar to an upper endoscopy, but the overall preparation is much longer.