Welcome to JA and thanks for this question. Well when preparing for a colonoscopy it is recommended to be on a liquid diet for atleast 24 hours before the procedure. It is infact recommended to use clear fluids only on the day before the colonoscopy. Secondly the prepping medication that you are given for use before the procedure is a laxative and it is perfectly NORMAL to have this many bowel movements. Most patients will experience anywhere between 6-12 bowel movements which are liquid in nature. This is normal. Now the dosing for the medication can differ from one hospital to another. The preferred method is known as split dosing. You take half the prep the night before the procedure and the other half about six hours before it. It may clean the colon more thoroughly compared to taking all the prep the day before the procedure.
But you should stick to the method described by your doctor as some physicians prefer telling teh patient to use the whole dose the day before.
In short YES you should be ona liquid diet the day before and YES it is normal to experience these many bowel movements. The diet on the day before the procedure should consist of only clear liquids like clear broth or bouillon, black coffee or tea, clear juice (apple, white grape), clear soft drinks or sports drinks, Jell-O, popsicles, etc.
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