Can whey protein cause intestinal problems?
Some people have problems digesting whey protein and experience symptoms such as bloating, gas, stomach cramps and diarrhea (5). But most of these side effects are related to lactose intolerance. If you are lactose intolerant, try switching to a whey protein isolate powder.
While protein shakes give you a boost of protein, they aren't for everyone. Some people who drink these beverages experience side effects, such as gas, bloating and diarrhea, because of ingredients commonly found in the shakes. These include protein, milk-based ingredients, sugar alcohols and fiber.
- A big increase in protein consumption could thereby cause dehydration since more water is being used to digest protein and remove wastes. Dehydration can lead to hard stools and constipation. High protein diets may also be accompanied by low carb/fiber intake. Consume fiber.
- But as Carolyn, a registered dietitian with the Midwest Dairy Association, explains in this video, whey protein isolate contains less than 1 percent lactose. This means pure whey protein isolate contains very little lactose, and you may be able to consume it even if you are lactose intolerant or lactose sensitive.
- Benefits for Weight Gain. Whey protein, consumed as part of a weight gain diet, can also help you pack on pounds. That means taking a whey shake after a tough strength workout provides nutrients you need to support muscle growth so you can add lean mass to your frame.
Lots of Gas and Loose Stools When Taking Whey Protein. For some people trying to either lose weight or gain muscle, however, whey protein may cause gastrointestinal discomfort. Check with your doctor before using any dietary supplement or if you experience discomfort when using a supplement.
- Protein/poop. It is a waste, but fortunately your body is still absorbing the protein in your intestinal tract, so the longer you are able to hold it, the less you will have wasted.
- Excessive intestinal gas is most often due to inadequate protein digestion. If your intestinal tract is too alkaline, protein won't be broken down completely. It will then ferment and putrefy, causing stomach bloat and excessive gas after eating, fullness, heartburn, and sometimes vomiting.
- If your calorie intake is low that day, your cells can convert excess amino acids to molecules that can burn as fuel. On the other hand, if you consume plenty of calories, your body has no choice but to convert the extra protein to fatty acids and store them in your adipose tissue.
Whey is a milk-based protein that contains all essential amino acids and is easy and quick to digest. It has a lot of pros, but taking too much can be a concern. In large doses, whey protein can cause upset stomach and related symptoms such as bloating, cramps and more frequent bowel movements.
- It May Cause Digestive Issues. Most of whey protein's side effects are related to digestion. Some people have problems digesting whey protein and experience symptoms such as bloating, gas, stomach cramps and diarrhea (5). If you are lactose intolerant, try switching to a whey protein isolate powder.
- Protein farts—what we like to call gas that's produced from eating a lot of protein. And they can be more pungent when you're pushing the whey protein shakes. Check to see if your protein powder is either concentrate or isolate. Concentrate contains more lactose than isolate.
- Milk or Casein Allergy: Cause and Symptoms
- Swelling of the lips, mouth, tongue, face, or throat.
- Skin reactions such as hives, a rash, or red, itchy skin.
- Nasal congestion, sneezing, runny nose, itchy eyes, coughing, or wheezing.
Updated: 12th November 2019