Ensure Pre-Surgery is specially designed to help reduce insulin resistance after surgery and improve patient outcomes. It is designed to be consumed up to 2 hours before surgery. Use as directed by your physician. *ERAS is a trademark of the Enhanced Recovery After Surgery Society. This product has not been reviewed or endorsed by the ERAS Society. †American Society of Anesthesiologists is a registered trademark of the American Society of Anesthesiologists (ASA). This product has not been reviewed or endorsed by the ASA. ‡Studies conducted using formulas containing similar nutrients as Ensure Pre-Surgery. Be sure to follow the nutrition program recommended by your doctor.