I had some issues with the product. I didn't necessarily have diarrhea but loose stools, a little too loose. Since getting off YG and back on to Cialobol, I no longer have problems. It's weird that I have no problems with the Cialabol, which has a warning of GI disturbances, but the YG bothers me. Oh well. Once I finish up with the Cialabol, I'll try YG again.