Can I eat the day of endoscopy?

Afterward. You may eat after you have recovered from sedation. I would avoid alcohol and spicy or acidic foods the first 24 hours.
Clear liquids only. The main concern of the doctor is to have the stomach empty when you are given sedation. Some patients vomit when given the medications, putting them at risk for aspiration and death. The safest way to avoid this is to avoid eating anything at least 4 hours before surgery.