How to Find the Best Meal Replacement Shakes for IBD

📌 Overview and Key Takeaways

This is a Dietitian’s guide on how to find the best meal replacement shakes for IBD.

Discover how to safely support your diet with inflammatory bowel disease.

Last Updated
Jan 11, 2026

Author and Medical Reviewer

Written by Kayla Kamen, MS, RD

Kayla Kamen is a Registered Dietitian with a MS in Nutrition.

Medically reviewed by Jennifer Fossett, PA-C

Jennifer Fossett is a Physician Assistant with a BA in Nutritional Sciences.

Meal Replacement Shakes for IBD

Are Meal Replacement Shakes Good for IBD?

IBD, or inflammatory bowel disease, is an inflammatory condition that affects the gastrointestinal tract, particularly the small intestine and colon.

There are two main types of IBD: Crohn’s disease and ulcerative colitis.

IBD is characterized by periods of inflammation (flares) and periods of remission.

Common symptoms include stomach pain, diarrhea, weight loss, and fatigue.

The exact cause of IBD is not fully understood, but it is likely a combination of genetic and environmental factors.

Moreover, there is no cure, but there are various treatments available to manage symptoms and control inflammation.

They include medications, lifestyle and dietary changes, and in some cases, surgery.

IBD patients with active disease often find it hard to meet their nutritional needs due decreased appetite, reduced food intake due to digestive issues, and/or nutrient malabsorption.

It is thus often recommended that IBD patients, especially those experiencing weight loss, eat an extra 250-500 calories per day (CCF, 2017).

A meal replacement shake offers a quick and easy way to bridge this nutritional gap.

A liquid meal may also be the only food some IBD patients can tolerate during a flare-up.

It follows that recent evidence highlights that meal replacements are valuable for addressing malnutrition and optimizing nutritional status in IBD, particularly in perioperative and hospitalized patients (Nutrients, 2025).

That said, not all meal replacements are created equal.

What Are the Best Meal Replacement Shakes for IBD?

As long as you are eating a balanced diet – getting protein from a variety of sources – the type of protein supplement you use does not matter.

Ingredients do matter, however.

Many meal replacements contain ingredients that might make IBD worse.

Among the top offenders are food additives and protein concentrates and isolates.

🚫 Avoid Food Additives

Regularly eating emulsifiers, thickeners, artificial sweeteners and other ultra-processed additives can not only upset your stomach, but also alter the composition and function of your gut microbiome (North Clin Istanb, 2019).

Over time, this can lead to gut dysbiosis, which contributes to the development of both Crohn’s disease and ulcerative colitis (Int J Mol Sci, 2022).

Much research demonstrates that dysbiosis causes reduced production of anti-inflammatory metabolites and increased production of harmful metabolites.

This imbalance disrupts the intestinal barrier, promotes immune activation, and perpetuates chronic inflammation.

⚠️ Here is a list of the most common food additives in meal replacements:

• acacia fiber
• acacia gum
• acesulfame potassium
• artificial flavors
• ascorbic acid
• aspartame
• calcium carbonate
• carrageenan
• cellulose gum
• dextrin
• dicalcium phosphate
• dipotassium phosphate
• erythritol
• gellan gum
• guar gum
• gum arabic
• inulin
• locust bean gum
• maltitol
• maltodextrin
• mono- and diglycerides
• ‘natural’ flavors
• rice bran extract
• rice dextrin
• rice hulls
• rosemary extract
• silica
• silicon dioxide
• sodium alginate
• soluble corn fiber
• sorbitol
• soy lecithin
• sucralose
• sunflower lecithin
• tocopherols
• tricalcium phosphate
• xanthan gum
• xylitol
• zinc oxide

As a rule of thumb, if you cannot find it in nature or make it at home, it is probably a food additive.

🚫 Avoid Dairy-Based Proteins

Dairy-based proteins like whey and casein, although not an issue for everyone, can cause digestive issues.

This is usually because they contain lactose, a sugar many individuals with sensitive stomachs cannot fully digest.

But you might be sensitive to dairy-based proteins even if you are not lactose intolerant.

This is particularly true for casein protein, which forms a gel-like substance in your stomach that slows down digestion.

🚫 Avoid Protein Concentrates and Isolates

If you have a sensitive stomach, you might also want to avoid ultra-processed protein concentrates and isolates.

Most protein supplements are made from one or both of these ultra-processed protein sources, which have been mechanically and/or chemically stripped of everything but the protein.

This includes the enzymes, fiber, and other natural digestive aids that help your gut break them down.

You therefore do not digest them in the same way that you do whole foods, which could affect your gut health.

Studies show that regularly eating protein concentrates and isolates might disrupt your gut microbiome (Nutrients, 2018) and cause the formation of toxic byproducts in your gut (Mol Nutr Food Res, 2024).

Individuals with pre-existing digestive issues should thus look for protein supplements made from whole food protein sources like egg whites and almonds, which are easier to digest and absorb.

Order Samples to see for yourself.

Sources

1. Crohn’s and Colitis Foundation (CCF). General Nutritional Considerations for IBD Patients. 2017.
2. Nutrients (Nutrients). Dietary Interventions and Oral Nutritional Supplementation in Inflammatory Bowel Disease: Current Evidence and Future Directions. 2025.
3. Northern Clinics of Istanbul (North Clin Istanb). Food additives and microbiota 2019.
4. International Journal of Molecular Sciences (Int J Mol Sci). Dysbiosis in Inflammatory Bowel Disease: Pathogenic Role and Potential Therapeutic Targets 2022.
5. Nutrients (Nutrients). Effect of a Protein Supplement on the Gut Microbiota of Endurance Athletes: A Randomized, Controlled, Double-Blind Pilot Study 2018.
6. Molecular nutrition & food research (Mol Nutr Food Res). In Vitro Fermentation of Animal and Plant Protein Isolates by the Human Gut Microbiota Under High and Low Carbohydrate Conditions. 2024.

Editorial Guidelines

---

This article was written by a Registered Dietitian and reviewed by a Physician Assistant. We rely on peer-reviewed research and trusted medical sources, and regularly update our content to ensure accuracy and clarity.