What is the best protein powder for IBS?

Written by Jack Schrupp and reviewed by Ella McGonagle, M.S. Nutrition

drink wholesome is the best protein powder for sensitive stomachs. It is additive-free, dairy-free, and made with real foods, not protein isolates – 99% of supplements fail to meet at least one of these criteria. This makes it perfect for people with gut issues and sensitive stomachs, as well as for people just looking to boost their protein intake without the processing and added junk. If you suffer from IBS, or any other digestive disease, order samples to see if our protein powder is right for you. 

“If you have a sensitive gut, you need simple ingredients.”

-Brittany Carpenter, MS, RDN/LDN

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drink wholesome is the best IBS protein powder.

What is IBS?

How do I know if a food is low FODMAP? 

Is protein powder good for IBS?

Why drink wholesome? 

What is IBS?


Irritable bowel syndrome (IBS) is a chronic gastrointestinal disorder (GI) that affects between 10% to 15% of adults in the United States. Common symptoms, which vary in severity and duration from person to person, include bloating, constipation, diarrhea. The cause of IBS is unknown, but may be related to an overly sensitive gut or immune system. 

IBS can be managed through diet. Most IBS sufferers simply avoid the foods that trigger symptoms, an approach called the low FODMAP diet. FODMAPs – fermentable oligo-, di-, mono-saccharides and polyol – are short-chain carbohydrates common in the American diet. They are found in foods like wheat, milk, and food additives, and are notorious for triggering digestive uncomfortable GI symptoms. A low FODMAP diet simply restricts high FODMAP foods. 

How do I know if a food is low FODMAP? 


Reading food labels for low FODMAP eating is tricky. First of all, it is impossible to guess the FODMAP content of a food. It is therefore a good idea to familiarize yourself with high FODMAP foods and avoid them whenever possible. As a rule of thumb, if you do not recognize it, and cannot figure out what it is, do not eat it. Some ingredients may not be on any approved low-FODMAP lists, but this does not necessarily mean that they are safe to eat. Do your research, and if you cannot find the answer, play it safe and eat something else. Also note that the exact quantity of each ingredient is usually not disclosed on an ingredient list. Ingredients are listed in order of descending weight, however, so if a high FODMAP ingredient is listed last, the actual amount might be so small that you can tolerate it.

Is protein powder good for IBS? Are protein shakes good for IBS?


IBS can result in weight loss in some cases. IBS patients may experience such extreme stomach pain that they may not eat as much as they normally would. IBS can also lead to malnutrition. When you have IBS, you may avoid certain foods that are healthy because they aggravate your symptoms. As a result, you can miss out on key nutrients, one of which is protein. This is where protein supplements can help; adding a protein supplement to your diet can ensure that you are getting enough calories and protein. That said, not all protein supplements are good for people with IBS. 

Some protein supplements are low FODMAP, others are not, and the only way to tell is to read the ingredients. Common high FODMAP protein supplement ingredients include whey and casein, inulin, many natural flavors, and sugar polyols like xylitol. Just because your protein supplement does not contain any of these high FODMAP ingredients does not mean that it is good for your gut, however. Many protein powders and protein shakes are made with seemingly-safe ingredients that are bad news for people with IBS and sensitive stomachs.

There are two types of protein supplements: ready-to-drink (store-bought) protein shakes, and protein shakes made with protein powder. In order to make an IBS protein shake with protein powder, you have to mix the powder with milk or water. This requires a blender or a shaker bottle, and a little extra time and effort. Some people, prioritizing convenience, prefer to buy ready-to-drink protein shakes, but if they knew what they were drinking, they would probably vomit. 

Ready-to-drink protein shakes are full of emulsifiers, stabilizers, thickeners, sweeteners, and flavors. Ingredients like these improve characteristics like taste, texture, and shelf stability, but can cause uncomfortable side effects and long-term gut damage (more about this soon). This is why I recommend that you make your own IBS protein shakes with protein powder. That said, not all protein powders are created equal, and many contain the same additives found in ready-to-drink protein shakes! 

Why drink wholesome


drink wholesome is additive-free.

One of the reasons why we make the best IBS protein powder is that we do not use food additives. Most protein powders, on the other hand, are full of food additives. Although not necessarily bad for you in small quantities, additives can add up quickly (especially if you drink a protein shake every day) and cause gastrointestinal (GI) side effects like bloating, constipation, diarrhea, gas, and stomach pain. This is because food additives are hard to digest, and sit in your gut for longer than food should, which gives your gut bacteria more time to eat. As they eat, these bacteria produce gas, which causes bloating and stomach pain. Gas also slows colonic transit (the amount of time it takes food to travel through the colon), and can lead to constipation. In the long term, food additives can disrupt regulatory pathways in the intestine, which can result in the development of inflammatory bowel disease (IBD) and systemic inflammatory disorders.

vanilla protein powder serving suggestion
peanut butter protein powder lifestyle image 1

When buying protein powder for IBS, one ingredient to avoid in particular is artificial sweeteners. Artificial sweeteners are among the most harmful food additives in the long term as they alter the composition of your gut microbiota (the collection of microorganisms that help you digest food). This can lead to serious, chronic GI problems, widespread inflammation, and permanent damage to the gut microbiome. Some sweeteners, especially sugar alcohols like xylitol, are also poorly absorbed by the gut (meaning they feed those hungry gut bacteria), and cause diarrhea because they draw water into your intestine. Now you finally have something to blame for those post-protein shake trips to the bathroom!

Here is a list of the most common food additives in protein powder:

acacia gum, acesulfame potassium, artificial flavors, aspartame, carrageenan, cellulose gum, dextrin, dextrose, erythritol, gellan gum, guar gum, gum arabic, inulin, locust bean gum, “natural” flavors, maltodextrin, rice syrup solids, soy lecithin, silica, sucralose, sunflower lecithin, xanthan gum, xylitol

When it comes to identifying food additives, go with your gut. 😉 As a rule of thumb, they are the ingredients that you cannot pronounce. Food additives are not the only thing to look out for when buying protein powder for IBS, however. There are several other ingredients that can upset your stomach.

the alternative:

Protein Matrix Comprised of (Whey Protein Concentrate,  Whey Protein Isolate, Calcium Caseinate, Micellar Casein, Milk Protein Isolate, Egg Albumen, Glutamine Peptides), Polydextrose, Sunflower Creamer (Sunflower Oil, Corn Syrup Solids,  Sodium Caseinate, Mono- and Diglycerides, Dipotassium Phosphate, Tricalcium Phosphate, Soy Lecithin, Tocopherols), Natural and Artificial Flavor, MCT Powder (Medium Chain Triglycerides, Nonfat Dry Milk, Disodium Phosphate, Silicon Dioxide), Lecithin, Cellulose Gum, Salt, Yellow 5, Sucralose, Acesulfame Potassium, Papain, Bromelain.

*This is the actual ingredient list of one of the best-selling protein powders in the United States.

drink wholesome is dairy-free.

Another reason why we make the best IBS protein powder is that we do not use dairy-based proteins. Many protein powders are made with whey and casein, which are byproducts of cheese and yogurt production, and known to cause digestive issues, especially for people with lactose intolerance and irritable bowel syndrome (IBS). Over one in three Americans are lactose intolerant, and the prevalence of IBS is somewhere between 10 and 15 percent in the United States. It follows that you may be lactose intolerant or have IBS and not even know it. Irritable bowel syndrome (IBS) is a poorly understood condition, and it is unclear why dairy triggers symptoms. Lactose intolerance, on the other hand, is clearly understood. People with lactose intolerance are unable to fully digest lactose, the sugar in dairy. As you just learned, partially digested food feeds the bacteria in your gut, which produce gas. 

drink wholesome is made with real foods.

A final reason why we make the best IBS protein powder is that we do not use protein isolates. Most protein powders, on the contrary, are made with protein concentrates and/or isolates, foods stripped of everything but the protein. They are listed on the ingredient list as “pea protein” and “whey protein” as opposed to “peas” and “whey.” I will not go into the details, but protein concentrates and isolates undergo heavy mechanical and chemical processing before becoming protein powder. Sometimes, manufacturers use chemical solvents like hexane to isolate (separate) the protein from the food. This means that what you end up putting into your body looks nothing like real food.

If you think about it, your gut was designed to digest naturally occurring foods, not laboratory formulated imitations, so if you feed it anything but real food, it might get upset. The long term implications of eating processed foods are still not well understood, but more and more research is finding that it can alter the composition of your gut microbiota, and lead to permanent damage to the gut microbiome. It is therefore in your best interest to avoid protein powders made with protein concentrates and isolates. 

mocha protein powder lifestyle image 2
chocolate protein powder serving suggestion

Instead of protein concentrates or isolates, we make the best IBS protein powder with whole foods like egg whites and almonds. Egg whites are simply pasteurized and dried before becoming protein powder. Almonds are just roasted, pressed, and ground. Whole foods like these are an easy to digest, gut-friendly alternative to protein concentrates and isolates. This is in part because whole foods contain a variety of enzymes and other digestive aids that help to break down the food, making it easier for the body to absorb the nutrients. Protein isolates and concentrates, on the other hand, have been stripped of these digestive aids, making them harder for the body to digest and absorb. Moreover, minimally-processed plant-based foods like almonds are rich in fiber, which helps promote healthy digestion and regular bowel movements.

Unless you have a sensitivity or allergy to eggs, egg white protein is the best protein for your gut. Egg whites are low in fiber, low-FODMAP, naturally alkaline, and have the highest protein digestibility-corrected amino acid score (PDCAAS) of any whole food. Our customers have experienced fewer digestive issues with egg white protein than with any other type of protein. If you cannot eat eggs, try our almond protein powder. We prefer almonds to other minimally-processed plant protein sources because they are more gut-friendly. Research suggests that almonds possess prebiotic properties and can improve the diversity and composition of the gut microbiome.

★★★★★

easy to digest

“I’ve had Crohn’s disease for 20+ years and it’s always been hard to find a protein powder my stomach can handle. I’ve had no problem digesting drink wholesome AND it tastes great. I highly recommend this protein powder if you have IBS or Crohn’s.” – Jesse

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drink wholesome is the best IBS-friendly protein powder.

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This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. drink wholesome is not intended to diagnose, treat, cure or prevent any disease.