How To Avoid Protein Powder Diarrhea


Are you wondering how to avoid protein powder diarrhea? Learn what causes protein powder diarrhea so you can avoid this common side effect.

Protein Powder Diarrhea

Does Protein Powder Cause Diarrhea?


If protein shakes make you run to the bathroom, you are not alone.

Many people experience protein powder diarrhea, meaning they have loose, watery bowel movements shortly after drinking protein shakes.

Symptoms typically last for a few hours, but some people report having diarrhea for days.

Fortunately, protein powder diarrhea is easily avoidable.

a man and a woman making a protein shake with drink wholesome protein powder

Why Does Protein Powder Cause Diarrhea? 


If protein powder makes you run to the bathroom, one (or more) of these ingredients is probably to blame:

Food Additives

Certain food additives, especially thickeners like guar gum, can draw water into your colon, increasing the liquid content of your stool.

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

  • 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

Basically, if you could not find an ingredient in nature or make it at home, it should not be in your protein powder. 

Sweeteners

Many artificial sweeteners and sugar alcohols can have a laxative effect.

Common artificial sweeteners are sucralose and acesulfame potassium.

Common sugar alcohols are erythritol, sorbitol, and xylitol. 

Dairy-Based Proteins

Dairy-based proteins like whey and casein can make you poop because they contain lactose, a sugar most adults cannot fully digest.

Insoluble Fiber

Insoluble fiber adds bulk to the stool, so if you eat a lot of it at once, it can cause diarrhea.

Most vegan protein powders naturally contain some insoluble fiber, but some protein powders, especially those intended to help with weight loss, contain added insoluble fiber.

This fiber is often in the form of xanthan or guar gum, which are also used as laxatives

Preexisting Gut Issues

If any part of your digestion is not working properly due to chronic digestive issues, the food you eat will not be fully broken down and absorbed.

This can lead to diarrhea, among other side effects.

a man making a protein shake with drink wholesome protein powder

Drink Wholesome Will Not Cause Diarrhea

Our Protein Powder will not cause diarrhea because we use a short list of simple ingredients.

Our Ingredients

egg whites

egg whites

coconut

coconut

vanilla

vanilla

monk fruit

monk fruit

NOT Our Ingredients

  • acacia gum

  • acesulfame potassium

  • artificial flavors

  • carrageenan

  • erythritol

  • guar gum

  • inulin

  • maltodextrin

  • 'natural' flavors

  • silica

  • soy lecithin

  • sucralose

  • xanthan gum

  • xylitol

Note that instead of using protein concentrates or isolates, we use whole food protein sources like egg whites and almonds.

It follows that our customers experience fewer digestive issues with Protein Powder than with any other type of protein supplement.

Order samples to see for yourself. 

What Other Health Issues Could Cause Diarrhea?


As you just learned, preexisting health issues can cause protein powder diarrhea.

One of the most common underlying health issues that can lead to diarrhea is lactose intolerance.

Lactose intolerance occurs when your body lacks lactase, the enzyme responsible for breaking down lactose, the sugar in milk and dairy products.

When individuals with lactose intolerance consume protein powders made with whey or casein, which are byproducts of cheese and yogurt production, they often experience diarrhea.

Food sensitivities and allergies can also contribute to protein powder diarrhea.

Individuals with sensitivities or allergies to soy, for example, need to be careful when using protein powders, as many contain soy-based additives like soy lecithin.

Finally, certain digestive diseases can impact your ability to digest protein powder, leading to diarrhea.

Conditions such as irritable bowel syndrome (IBS) or inflammatory bowel disease (IBD) are notorious for making people run to the bathroom.

seniors-making-a-protein-shake-with-drink-wholesome-protein-powder

How Do I Make Protein Powder Easier to Digest?


By following these guidelines, you can minimize the risk of experiencing protein powder diarrhea: 

  1. Start with small portion sizes. Eating too much protein at once can overwhelm your digestive system and lead to diarrhea. Your body needs time to properly break down and absorb what you feed it, so it is important to spread your protein supplement intake throughout the day.
  2. Consider timing. When you consume protein powder can also impact digestion. If you have a sensitive stomach, for example, it might be best to consume protein powder with a meal.
  3. Pair thoughtfully. Protein powder alone may not be the sole culprit behind your digestive issues. In some cases, other foods or ingredients may cause or exacerbate side effects like diarrhea. For example, if you are lactose intolerant and mix your protein powder with milk, you may find yourself running to the bathroom. Similarly, if you add your protein powder to a smoothie full of high fiber fruits and veggies, your digestive system may be unhappy.

In summary, while selecting the right protein powder for your digestive health is crucial, there are other factors to consider to ensure optimal digestion.

Reviews

Gabriella

3 weeks ago

Verified Purchase As someone who has struggled with chronic conditions for 10+ years, getting in nutrient-dense foods is big part of how I care for my body. Finding options that are tasty and convenient is difficult. And I am always trying to eat enough in order to maintain my weight. Providers consistently recommend smoothies/shakes. I have tried so many over the years and each time the GI symptoms are intense or the flavor is awful! Since finding Drink Wholesome, I have finally been able to incorporate higher protein smoothies and shakes without the digestive upset. As a result, I have been able to maintain my weight more easily and even gain some beneficial weight. digestive issues

For Egg White Protein Powder

Gayle

2 months ago

Verified Purchase Drink Wholesome is really the best handful of ingredients protein powder that didnt give me any stomach issues at all. Anyone who has had bloat, etc should try this protein powder. I’ve been making smoothies since April 2025 and no problems at all. bloating

For Egg White Protein Powder

Matt

2 months ago

Verified Purchase After trying so many protein options and trying to live well with IBS on the go and staying fit and healthy in my 50s, I can honestly say what you are doing at Drink Wholesome is great. Keep up the great work, keep it simple and clean, and keep it positive like you have been. It’s refreshing and it works. Thank you. IBS

For Egg White Protein Powder

Frequently asked questions

Who is Drink Wholesome for?

Drink Wholesome is the best protein powder for sensitive stomachs. Because it’s made from a short list of simple ingredients, it’s also a great option for anyone who wants to avoid artificial and ultra-processed ingredients – including kids, seniors, and moms.

Why is Drink Wholesome easy to digest?

No Dairy 

Drink Wholesome is made without whey and casein, which contain lactose, a sugar most people can’t fully digest. Dairy-based proteins, especially casein, also form a gel-like substance in your stomach, which can upset sensitive stomachs.

No Additives

Drink Wholesome is made without food additives. Regularly eating artificial sweeteners, emulsifiers, thickeners, and other additives can cause digestive issues and even long-term gut health problems.

Whole Food Protein

Drink Wholesome is made from whole food protein sources like almonds and egg whites. Unlike ultra-processed protein concentrates and isolates, which have been stripped of fiber, enzymes, and other natural digestive aids, whole foods are easy to break down and absorb.

Collagen vs egg white vs almond protein powder?

We make three types of Protein Powder for sensitive stomachs: Collagen Protein Powder, Egg White Protein Powder, and Vegan Almond Protein Powder. As long as you eat a balanced diet (get protein from a variety of sources), any type of protein powder can help you meet your protein needs. So just pick the type that best suits your personal preferences.

Ask our dietitian.

If you’re wondering which of our products is best for you, ask our registered dietitian. He’ll reply via email within 24 hours.

Ask Our Dietitian
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High Protein Blueberry Pancakes

PREP TIME

5 min

COOK TIME

5 min

SERVES

2

Ingredients
  • ¼ cup Drink Wholesome
  • ⅓ cup flour
  • 2 egg whites
  • ¼ cup plant milk
  • 1 tbsp nut butter
  • 2 tbsp maple syrup
  • 1 cup blueberries
Instructions

In a blender, combine the egg whites, milk, ¼ cup blueberries, and almond butter. Pour the mixture into a small mixing bowl and add the protein powder and flour. Whisk until smooth. Pour ⅓ cup batter onto a heated and greased (or non-stick) pan to form pancakes. Cook each side for 2-3 minutes. This recipe makes 4-5 pancakes. Then, in a small saucepan, heat ¾ cup blueberries and the maple syrup over medium heat, stirring occasionally, for about 8 minutes. Plate the pancakes and spoon blueberry jam on top.

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