You usually do not need to fast from midnight. The typical guidance is no solid food for 6 hours before surgery and no clear liquids for 2 hours before surgery. Clear liquids include water, black coffee, black tea, and juice without pulp. Some sources say the fasting period can be up to 8 hours depending on your age and the medicines you take.

A few sources also note that healthy adults may drink clear fluids, including carbohydrate drinks, up to 2 hours before surgery.

If you have been told a different schedule, or if you have trouble swallowing, a blockage, or slow stomach emptying, the plan may be different. Verify the exact plan with your surgical or anesthesia team in case they want something different for you.