A pilot study was conducted using potassium to successfully treat premenstrual syndrome in seven women with severe symptoms. After/allowing a specific protocol all subjects found their symptoms gradually decreasing in intensify and duration until all were free ofPMS. In addition, most found their overall health and energy levels improve. PMS frequently occurs or worsens after situations which, are known to deplete potassium. Many PMS symptoms, aside from. their unique, timing, are the same as many known potassium, deficiency symptoms. Serum, potassium levels have been proven not to be an accurate indicator of total body content, allowing a mild to moderate deficiency to go undetected.