Do Protein Shakes Cause Constipation?
Do protein shakes cause constipation? Discover what causes protein shake constipation and how to avoid this common side effect.
Protein Shake Constipation
Can Protein Shakes Cause Constipation?
Are you unable to poop after drinking a protein shake?
Although a common side effect of protein supplements is diarrhea, many people report that protein shakes and powders also cause constipation.
Constipation occurs when you have fewer than three bowel movements a week and your poop is hard and difficult to pass.
Common symptoms include bloating and stomach pain.
How Do I Relieve Protein Shake Constipation?
If you are constipated and looking for relief, try the following remedies:
- Drink water – Drinking lots of water, especially warm or hot water in the morning, softens your stools.
- Exercise – Movement can stimulate the muscles in your intestines.
- Eat fiber – Fiber increases the size of your stool, helping it move through your digestive tract. It also softens your stool, making it easier to pass.
- Drink coffee – Caffeine can stimulate involuntary muscle contractions in your colon.
- Use a laxative – If all else fails, try a laxative. Most laxatives can be purchased over-the-counter. I put this on the list because laxatives have potential side effects, such as allergic reactions and vitamin deficiencies.
Keep in mind that everyone is different, so what works for you might not work for someone else.
Remember to be patient too, as most remedies take 12 to 72 hours to work.
Also note that occasional constipation is nothing to worry about.
If protein shakes regularly make you constipated, however, then it is time to switch brands.
Why Do Protein Shakes Cause Constipation?
Unless you have a food allergy or sensitivity, protein shake constipation has nothing to do with the type or amount of protein in your protein shake.
Instead, protein shakes tend to cause constipation because they are made with ingredients that are hard to digest.
Before we get into what these ingredients are, however, it is worth mentioning that high protein intake, especially in the absence of carbohydrates and fiber, can cause your gut bacteria to ferment the protein.
Protein fermentation, in turn, increases the production of ammonia, branched-chain fatty acids, and other nitrogenous compounds, which might impair gut motility.
And impaired gut motility, which is the movement of food through your digestive tract, can contribute to altered bowel habits, including constipation.
To prevent this from happening, either choose a protein supplement with some carbs and fiber, or mix it with high fiber foods like fruits and veggies.
Now that you know not eat protein without any carbs and fiber, here are the top protein supplement ingredients known to cause constipation:
Food Additives
Emulsifiers, thickeners, and other additives look nothing like real food, making them hard to digest.
This means that they spend longer in your gut feeding your hungry gut bacteria, which produce gas as they eat.
And gas, specifically methane gas, slows colonic transit, or the amount of time it takes food to travel through the colon.
Exactly why this happens is somewhat of a mystery, but researchers believe that intestinal gas may reduce intestinal motility.
Regardless, an excess of gas in your intestines can cause constipation.
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 supplement.
Dairy-Based Proteins
Dairy-based proteins like whey and casein, although not an issue for everyone, can cause side effects like constipation.
This is usually because they contain lactose, a sugar most adults cannot fully digest.
Avoid Protein Concentrates and Isolates
Most protein supplements are made from protein concentrates and isolates, 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 it does whole foods, which might lead to constipation.
It follows that you should look for protein supplements made from whole food protein sources.

Drink Wholesome Will Not Cause Constipation
Finding a protein supplement free from food additives, dairy-based proteins, and protein concentrates and isolates is hard.
In fact, 99% of protein supplements contain one or more of these problematic ingredients, which is why we created Drink Wholesome.
Our protein supplements will not make you constipated because we use a short list of simple ingredients.
Our Ingredients

egg whites

coconut

vanilla

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, which are easier to digest and absorb.
It is also worth noting that because they are made from whole foods, our Vegan Almond Protein Powders contain 5-8 grams of fiber per serving.
Dietary fiber, also known as roughage, is the indigestible part of plants.
Unlike other nutrients, it is not broken down and absorbed by the body.
Instead, it passes through the digestive tract relatively intact, speeding up digestion by adding bulk to the stool.
Most protein supplements, on the contrary, do not contain much (if any) fiber, which is too bad, because fiber rich protein powders are unlikely to cause constipation.
This is why our customers experience fewer digestive issues, including constipation, with our Protein Powder than with any other type of protein supplement.
Order Samples to see for yourself.

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
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
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
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.
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.








