Yes, casein protein powder, like other protein powders, can cause digestive issues, including diarrhea, in some individuals. This can be due to an intolerance to dairy products, difficulty digesting casein, or consuming too much protein powder in a short period of time.
In some individuals, the consumption of dairy products can lead to symptoms such as bloating, gas, and diarrhea due to lactose intolerance. If you are lactose intolerant, you may experience similar symptoms after consuming casein protein powder.
Additionally, consuming too much protein powder in a short period of time, especially if not well hydrated, can also lead to digestive discomfort and diarrhea.
If you're experiencing digestive issues after consuming casein protein powder, it's best to speak with a healthcare professional to determine the cause and receive appropriate treatment. You may also want to try reducing your intake of casein protein powder or switching to a different type of protein powder to see if it improves your symptoms.