Preparing for a colonoscopy requires clearing the bowel with fasting, a laxative drink and, in some cases, an enema. While such preparation can alter the microbiome, the rich array of microbes that are present in the gut, research suggests that the microbiome bounces back in about two to four weeks.
In conclusion, bowel preparation has a profound effect on the gut microbiome and metabolome, but the overall composition recovers to baseline within 14 days of bowel prep. Bowel cleansing before colonoscopy appears to be a safe procedure from the viewpoint of the human gut microbial ecosystem.
Eat a diet rich in prebiotics. These are foods like fruits, vegetables, oats and whole grains that are high in fiber and feed probiotic bacteria. Avoid processed foods, wheat products, sugar, hydrogenated fats, alcohol and high fructose corn syrup for several days after your colonoscopy.
Don't stop until it's gone. The goal of the prep for colonoscopy is to completely rid your body of food particles. Your bowel movements will be watery and clear or light yellow. It is still important to continue drinking your prep until it is completely gone even if your stool has become clear.
When your bowel movements contain only brown liquids, this means you are almost finished with your bowel prep. Your stools should eventually end up as a clear or yellowish liquid. Two things to keep in mind: If there is any cloudiness to your liquid stool, your bowel prep is not complete.
How can you tell if your colon is clean and ready for a colonoscopy? Your stool after finishing your bowel prep agent can act as a guide. Your stool should be clear, yellow, light and liquid. The presence of dark particles or thick brown or black stool means you are not ready for colonoscopy.
When will I stop moving my bowels? Most people stop moving their bowels about 2 – 3 hours after finishing the solution. People are different and some have liquid movements until the time of the procedure. The instrument used during the colonoscopy will suction out any liquid left in the bowel.
The biggest culprits that will show up in a colonoscopy and obscure our view are foods like nuts, seeds and high-fiber cereals. You also want to avoid granola, coconut, dried fruit and fresh fruit with the skin on, like apples and pears, or fruit with seeds, like strawberries and raspberries.
Recently, several studies have shown that bowel preparation for colonoscopy could change the fecal microbial diversity and composition, and these effects could last up to 1 month [13-15]. Bowel preparation also affects the change of gut metabolome but this is recovered within 14 days [16].
The First Week after a Colonoscopy
After polyps are removed it can take up to a week for the patient to fully recover. During this time, patients should avoid all strenuous activities, which includes lifting anything over five pounds.
You may feel gassy or bloated for a while after the procedure because of the air that was injected into your intestine during the colonoscopy. As you release the air, the feeling should begin to subside. You should feel back to normal in that regard within 30 minutes to an hour.
Millions of friendly bacteria live in your intestines, and they're important for your digestion. But diarrhea can throw the microbes in your gut off balance. Probiotics may help get things back on track. You can find probiotics in certain foods, like yogurt, and they also come in the form of supplements.
You may not have a bowel movement for several days after a colonoscopy. You should, however, pass gas normally after a colonoscopy.
Conclusions: Probiotics intake before colonoscopy improves quality of bowel cleasing and allows a higher adenoma detection rate.
Your body needs these good bugs to maintain healthy balance. Thus it is very important to replenish your gut flora with healthy bacteria when colon cleansing. Always choose high quality probiotics with many strains and billions of bacteria.
The day before the colonoscopy procedure — Don't eat solid foods. Instead, consume 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.
While everyone's body is different, most people are able to complete their round of purging before going to sleep for the night. If you're taking a split dose, you may have to wake up early to take your second dose on the morning of your colonoscopy. But you should be able to sleep in between.
Everyone has a different response to the bowel prep solution. Some people start having diarrhea within an hour of drinking the solution. Others have no response for a few hours. Be patient and continue with drinking the prep as instructed.
After your nausea has decreased or stopped, you can start the bowel prep again, but you should drink it at a slower rate. Sometimes, drinking too much, too quickly is too much for your system to handle. Another tip is to make sure the prep is chilled. It helps to refrigerate the liquid prep.