You can eat in small amounts the day before the colonoscopy, it is not recommended on the day. It is recommended that the day before the test requires a diet that is semi-liquid and low in dietary fiber.
Colonoscopy is used for the examination of lesions in the intestinal area and requires the use of an endoscope inserted from the anus of the subject to the ileum to visualize the intestines. Bowel preparation is required prior to colonoscopy, which generally involves oral medication and drinking plenty of water to clean out the waste from the bowel. The test results will be more accurate when there is no food residue left in the intestines.
The precautions for colonoscopy are generally that the day before the examination needs to be based on a semi-liquid, dietary fiber-poor diet, such as millet porridge, noodles and so on. Tofu curd is usually made from soybean processing and is generally not rich in dietary fiber, so the patient can eat tofu curd the day before the colonoscopy.