Looking for the best clear protein drinks for colonoscopy preparation? Try these safe, tasty drinkable proteins to stay energized during your clear liquid diet.
A vital part of colonoscopy preparation is the clear liquid diet, which usually begins a day before the colonoscopy. The diet can be challenging, especially when trying to maintain adequate protein intake. Fortunately, some clear protein drinks offer a solution, providing essential nutrients without compromising the effectiveness of the prep.
However, it is important to make sure that you only choose protein drinks that fit the clear liquid criteria. In this article, Dr Akintomiwa shares his recommendations of suitable clear protein drinks for colonoscopy prep.
This article was original published in October 2024, and updated in March 2026 to improve reader usefulness and clarity.
What are Clear Protein Drinks for Colonoscopy Prep?
Clear protein drinks are water-based drinks infused with protein supplements to enrich them and provide more nutrients. While clear liquids like water, broth, and certain fruit juices are commonly enjoyed on a clear liquid diet, finding protein-rich options that meet the criteria can be tricky.
In saying that, there are many ways to get protein on a clear liquid diet such as gelatin-rich soups. However, readymade clear protein drinks provide an easy and convenient alternative to home cooking, and chilled protein drinks are more enjoyable on hot summer days.
As long as the protein drinks fit the clear liquid criteria, they can be used during any part of the clear liquid diet phase, including as a light breakfast on the day of the colonoscopy, as long as your doctor’s advice agrees.
How to Choose Protein Drinks for a Clear Liquid Diet
When choosing a protein drink during a colonoscopy prep, ensuring that it meets the guidelines of a clear liquid diet is vital. Here are some key features to look for:
- Transparency: The drink should be clear and see-through. Anything cloudy, milky, or opaque is not suitable.
- No Residue: The drink should not contain pulp, seeds, or anything that could leave residue in the colon.
- No Red or Purple Coloring: Drinks with red, blue, or purple coloring can impair the visibility of the colon and produce misleading results. Hence, they should be avoided.
- Adequate Protein Content: The drink should provide a reasonable amount of protein to help maintain energy levels during the colonoscopy prep phase.
When selecting a clear protein drink, paying attention to its ingredients and determining if they align with your dietary requirements and your health provider’s recommendations is crucial. Properties like sugar levels, fat levels, preservatives, and so on should also be considered.
Recommended Brands of Clear Protein Drinks for Colonoscopy Preparation
Some clear protein drinks that meet the criteria for a clear liquid diet include:
Isopure Infusions
Isopure Infusions is a popular option, featuring clear protein drinks with flavors like Tropical Punch and Citrus Lemon. These drinks provide up to 20 grams of protein per serving. The drinks are nutritious, tasty, and fiber-free, making them suitable for a clear liquid diet.
Protein2o Protein Water
Protein2o offers a variety of clear protein waters in flavors like Mixed Berry and Tropical Coconut. Each bottle contains about 15 grams of whey protein isolate and is low in calories and sugar. Protein2o drinks are transparent and have been praised for their light and refreshing taste.
Ensure Clear Nutrition Drink
Ensure Clear is a popular option for many. It provides 8 grams of protein and essential vitamins and minerals, with flavors including Mixed Fruit and Blueberry Pomegranate. However, be careful when choosing the Ensure brand as some of their protein drinks are not suitable on a clear liquid diet; it is important that you choose only ‘Ensure Clear’ – for more info, read the article at the link below.
Related Article: Can I Drink Ensure Before Colonoscopy? The Issue with Meal Replacement Drinks
Conclusion
Maintaining adequate nutrition on a clear liquid diet can be challenging when preparing for a colonoscopy. However, choosing the right clear protein drinks can help you stay energized and hydrated. While this article echoes popular brand suggestions, there are many more clear protein drinks that you can enjoy on a clear liquid diet. Just make sure the protein drink you choose is transparent and not heavily colored. While readymade clear protein drinks are a popular way of increasing protein uptake on a clear liquid diet, always consult your healthcare provider to ensure that any drink you choose meets your dietary needs.
