Wondering “can I drink ensure before colonoscopy” to hold back hunger? Learn which meal replacement drinks are colonoscopy-safe and which ones to avoid.
Adhering to dietary guidelines before a colonoscopy is crucial for ensuring a clear view of the colon. A clean colon allows doctors to detect abnormalities, such as polyps, bleeding, or signs of colorectal cancer, without interference. To ensure the success of the procedure, you will be required to make some strict dietary adjustments in the few days leading up to the colonoscopy.
The question, “Can I drink Ensure before colonoscopy?” might pop into your mind, especially if this is one of your preferred drinks.
In this article, we will clear the air on the suitability of meal replacement drinks like Ensure for a pre-colonoscopy diet.
Can I Drink Ensure Before Colonoscopy?
In preparing for a colonoscopy, you need to follow two important rules. One is to steer clear of foods rich in fiber, and the second is to opt for only clear liquids.
FAQ: Can I drink Ensure Before Colonoscopy?
So, does Ensure meet the criteria for a permissible pre-colonoscopy meal?
The answer is not a clear yes or no as it depends on the type of Ensure product.
Traditional Ensure drinks, like Ensure Plus or Ensure Original, are not considered clear liquids and are generally not permitted before a colonoscopy. These products are opaque and contain ingredients that may leave residue in the colon, interfering with the doctor’s ability to get a clear view.

FAQ: Can you drink Ensure on a clear liquid diet?
However, Ensure Clear is a specific product designed to be a clear nutritional drink. Ensure Clear provides essential vitamins, minerals, and protein without the solid particles found in traditional meal replacement drinks. It also has 0g of dietary fiber.
Hence, Ensure Clear does largely meet the criteria for a clear liquid, low fiber diet.
Still, it’s crucial to cross-check with your healthcare provider whether Ensure Clear or similar beverages are suitable for you. Every doctor may have slightly different recommendations, so personalized advice is key.
What are the Recommended Types of Meal Replacement Drinks?
Ingredients to Avoid in a Colonoscopy-Safe Meal Replacement Drink
To simplify your process of selecting meal replacement drinks that are safe for a colonoscopy, let us specify the ingredients that must be avoided. These include:
Red, blue, or purple coloring: Brightly colored drinks should be avoided because the dye can stain the lining of the colon and cause erroneous diagnosis.
High-fat or high-fiber content: Drinks with high amounts of fiber or fat can slow down digestion and leave residue in the colon.
Pulp or solid particles: These beverages can leave residue or particles in the colon, obstructing the doctor’s view.

Criteria for Colonoscopy-safe meal replacement drinks
Using the criteria established above, here are the meal replacement drinks that are generally acceptable to consume before a colonoscopy:
- Ensure Clear: This drink is transparent, provides hydration, and offers essential nutrients without the risk of leaving residue in the colon.
- Other clear nutritional beverages: Brands like Boost Breeze also have clear options, but always double-check the ingredients and consult your doctor.
- Homemade broths: Clear chicken, beef, or vegetable broth can also serve as a source of nutrients while keeping your colon clean.
- Electrolyte drinks: Low-sugar, clear sports drinks (avoiding red, blue, or purple varieties) can help maintain hydration.
Conclusion: Can I drink Ensure Before Colonoscopy?
So, can you drink Ensure before colonoscopy? You can if it is clear, low in fiber, and without solid particles. Ensure Clear is the only colonoscopy-safe product from the Ensure product line.
Ultimately, you should consult your doctor for more specific and personalized recommendations for which meal replacement drinks are okay for you in the preparation phase.
Author
Dr. Akintomiwa is a medical writer and medical doctor with many years experience writing on health and medicine. He holds a Bachelor of Medicine and Bachelor of Surgery (MBBS), and has worked in General Surgery and Gastrointestinal Medicine units.
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