Protein powder side effects.
What are protein powder side effects?
Protein powder is just food. Do not expect it to do anything to your body that normal food will not. Some protein powders do have side effects, but these side effects are usually linked to added ingredients, not the protein itself. It is therefore important that you read the ingredient list before buying a protein powder. Here are a few ingredients to avoid if you are sick of protein powders that cause side effects.
Avoid food additives.
Most protein powders are full of food additives. Although they are not necessarily bad for you in small quantities, food additives can add up quickly, especially if you drink a protein shake every day. At higher quantities, food additives can cause gastrointestinal (GI) side effects.
Many food additives are hard to digest and sit in your gut for longer than they should. This gives your gut bacteria more time to ferment (eat), and as they eat, these bacteria produce gas, which causes bloating, cramps, and nausea.
In the short term, gas also slows colonic transit (the amount of time it takes food to travel through the colon), which can lead to constipation. In the long term, food additives disrupt regulatory pathways in the intestine and trigger the development of inflammatory bowel disease (IBD) and systemic inflammatory disorders.
Keep an eye out for artificial sweeteners too. Artificial sweeteners are poorly absorbed by the gut, which means that they feed your hungry gut bacteria. They also alter the composition of your gut microbiota (the collection of microorganisms that help you digest food). This can lead to serious GI problems and widespread inflammation.
Finally, artificial sweeteners, especially sugar alcohols like xylitol, can cause diarrhea because they draw water into your gut. Now you might 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, however. There are several other ingredients that can upset your stomach.
egg whites, coconut, cocoa, monk fruit
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.
Whey protein stomach ache? Dairy-based proteins like whey can casein, which are byproducts of cheese and yogurt production, are 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.
Avoid protein concentrates and isolates.
Finding an additive-free, dairy-free protein powder is hard. Finding an additive-free, dairy-free protein powder made with real foods is next to impossible. Why? Most protein powders are made with protein concentrates and isolates, foods stripped of everything but the protein. They are listed on the ingredient list as “pea protein,” for example, as opposed to “peas.”
We 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 separate the protein from the food. This means that what you end up putting into your body looks nothing like real food.
The potential problem here is that your gut might not know what to do with ingredients like these. Your gut prefers the real thing, not some heavily-processed imitation, so protein concentrates and isolates might be hard to digest for people with sensitive stomachs.
Instead of protein concentrates or isolates, we use egg whites and chickpeas. Egg whites are simply broken, pasteurized, and dried before becoming protein powder. Chickpeas are just dried and ground. Minimally-processed ingredients like these are easy to digest and a stomach-friendly alternative to protein concentrates and isolates.
Unless you have a sensitivity or allergy to eggs, egg white protein is the best protein for people with sensitive stomachs. Egg whites are low in fiber, low-FODMAP, 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 chickpea protein powder. We like chickpeas because, compared to other plant protein sources, they are high in soluble fiber. Unlike insoluble fiber, which can have a laxative effect, soluble fiber increases in size as it moves through your digestive tract. This can help make your bowel movements easier and more regular.
“I just finished my first bag and ordered 2 more! I Iove this stuff! I have IBS and every protein powder hurts my stomach…except drink wholesome!”
What about heavy metals?
A non-profit called the Clean Label Project claims that most protein powders contain lead, and that vegan protein powders contain, on average, twice the amount of lead per serving as protein powders made from animal products. They also claim that plant-based protein powders contain mercury, cadmium and arsenic, in some cases at levels above regulatory thresholds. Even though heavy metals can be dangerous, these findings are not particularly concerning.
There is no such thing as a heavy metal-free vegan protein powder. All plant-based protein powders contain heavy metals, and simply because there are detectable amounts of heavy metals in these foods does not render them unsafe to consume, nor does it discount the benefits they offer as part of a balanced diet.
To put matters into perspective, according to a study by the U.S. Food and Drug Administration, we consume more metals from common foods, like kale, apples, and avocados than we do from plant-based supplements. In other words, if you are eating a healthy serving of any of these foods, you are probably ingesting more heavy metals than you would from a serving of vegan protein powder.
What about kidney damage?
Research suggests that high dietary protein intake may increase the risk for chronic kidney disease in individuals with impaired kidney function. The metabolism of dietary protein creates waste, which kidneys filter. Eating a lot of protein, especially animal protein, forces our kidneys to work harder, which may lead to kidney damage. This is only a concern for people with impaired kidney function, however, and there is little to no evidence that a high protein diet has a detrimental effect on kidney function in healthy persons.
In summary, protein powders can cause side effects. Casein and whey protein, for example, can cause stomach pain and acne because they contain dairy. Other protein powders can cause side effects because they contain food additives. It is therefore important that you read the ingredient list before buying a protein powder.
Our protein powders do not cause side effects.
This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment.