Is it normal to have diarrhea and gas when taking hydro-whey supplements?

Diarrhea and gas are common side effects of taking whey supplements. Whey is a protein that is found in milk and is often used as a protein supplement. Some people may experience digestive issues when they first start taking whey, but these symptoms usually go away after a few days or weeks. If you are experiencing severe or persistent diarrhea or gas after taking whey, you should talk to your doctor.