Saw Palmetto Side Effects in Men - Are They Good or Bad?
The most common saw palmetto side effects are gastrointestinal issues. These include upset stomach, vomiting, constipation, or diarrhea.[5] However, in many saw palmetto studies, side effects occurred just as commonly in those taking the placebo as those taking saw palmetto.[7] Because saw palmetto likely acts as a 5-alpha-aromatase inhibitor ...