Facing an colonoscopy can be nerve-wracking, especially when you’re living with celiac disease. The added layer of ensuring everything is gluten free—from the prep materials to post-procedure snacks—makes preparation even more essential. When I underwent a routine colonoscopy as part of my ongoing care, I learned some valuable lessons about how to make the process smoother and less stressful.
If you’re preparing for a colonoscopy and wondering how to navigate it with celiac disease or to get tested for celiac disease along with an endoscopy, this guide will help you feel prepared and confident from start to finish.
Preparation is Key
Preparing for a colonoscopy involves clearing out your bowels completely so the gastroenterologist can get a clear view during the procedure. While this might not sound like the most pleasant task, following the instructions you’re given is crucial. I stuck to my doctor’s detailed prep guidelines, and it paid off—my doctor later shared that proper prep made his job much easier. Skipping steps or not following directions precisely might lead to incomplete results and the need for a repeat procedure. Trust me, you don’t want that!
Diagnosis vs. Post-Diagnosis Prep
The experience of preparing for a colonoscopy can differ significantly depending on whether it’s part of the diagnostic process for celiac disease or a follow-up procedure after a diagnosis. Your gastroenterologist may be doing a colonoscopy alongside an endoscopy if you're in the testing for celiac phase. Before being diagnosed, you must still consume gluten to ensure accurate results from any related tests, such as biopsies. If you were told to cut out gluten prior to your procedure, this may result in an incorrect result. Unfortunately, many people are told to cut out the gluten prior to their procedure as many doctors aren’t aware that gluten still needs to be consumed in the lead up to the endoscopy biopsy. If your doctor has given you this incorrect information, I recommend calling your gastroenterologists office and advising them as you may need to postpone your procedure.
The prep process might involve foods or medications containing gluten, which can exacerbate symptoms for those who are already struggling eating gluten. On the other hand, if you’re undergoing a colonoscopy after a celiac disease diagnosis, you’ll already be on a strict gluten free diet, making it essential to ensure that all prep materials and any foods or drinks you consume are completely gluten free. This added vigilance helps avoid unnecessary reactions and ensures your comfort throughout the process. Understanding these differences can help you better prepare, whether you’re seeking answers or maintaining your health after diagnosis.
Take Time Off for Comfort and Privacy
During the prep phase, you’ll find yourself making frequent and urgent trips to the bathroom. Taking a couple of days off work or school ensures that you’re close to a bathroom and can maintain your privacy. Being at home also allows you to stay hydrated, rest, and manage the process more comfortably. Whether it’s binge-watching a fave series or curling up with a good book, having downtime makes this stage much more bearable.
Stock Up and Rest Up
Before starting your prep, stock your kitchen with recommended foods and drinks. Clear liquids like broths, and electrolyte drinks are helpful, but check with your doctor for specific instructions. Having everything on hand means you can avoid a last-minute trip to the shops and you can focus on staying comfortable. It’s also a good idea to plan meals that are easy on your digestive system before you start the clear-liquid phase to make the transition smoother.
Check for Food Allergies and Intolerances
If you’ve already been diagnosed with celiac disease or other food sensitivities, double-check the ingredients in your prep kit. Not all clinics or pharmacies are aware of gluten as a concern, so it’s up to you to ensure the products are safe. In my case, I confirmed the prep kit ingredients were gluten free as I’ve spoken to countless people already diagnosed with celiac disease given prep kits containing gluten. Don’t hesitate to ask your doctor or pharmacist for alternatives if your kit contains gluten or other allergens. This simple step ensures your preparation goes as smoothly as possible.
Plan Ahead for Post-Procedure Snacks
One thing I didn’t anticipate was the recovery snack offered at the clinic—it wasn’t gluten free. I was offered cheese and crackers that weren’t safe. Luckily, I had packed my own snack, which saved the day. Bring along something simple, like a gluten free protein bar, nuts, or even a banana, to keep your energy up post-procedure. It’s a small step that makes a big difference.
A Smooth Recovery
Despite my initial worries, I woke up after the procedure feeling fine—no pain, no discomfort, just relief that it was over. The preparation and planning paid off, and I was reassured knowing I’d taken steps to ensure my health and comfort. If you’re preparing for a colonoscopy, remember that good prep is your best friend. Follow the instructions, think ahead about your needs, and take the time to rest and recover. And lastly, ensure you have a trusted friend or family member pick you up to take you home after your procedure so you don’t have to drive.
You’ve got this.

Comments