You can eat rice porridge, noodles, egg custard, etc. after painless gastroscopy and colonoscopy. After painless gastroscopy and colonoscopy, you need to fast for about 2-4 hours and wait for the effect of anesthesia drugs to completely subside before you can properly eat some liquid or semi-liquid food. Rice porridge is rich in nutrients and is easily digested and absorbed, which does not burden the gastrointestinal system and produces less food residue, so it is a food that can be eaten after painless gastroscopy and colonoscopy. Noodles are made of flour and are particularly soft and lubricated, so they do not cause obstruction in the esophagus and can be quickly digested and absorbed by the body. Egg custard also contains a large amount of protein and lecithin, which can provide the body with energy and is an easily digestible food. For some people, during painless gastroscopy and colonoscopy, biopsies are extracted, and the fasting time for such patients needs to be relatively extended, and the food can be ingested only after 24 hours.