I was recently asked by my patient how to get enough potassium. He regularly experiences abdominal cramps, tingling and muscle numbness, high blood pressure, low energy, irregular heart-beat and excessive urination. If you are experiencing muscle fatigue, you may have potassium deficiency and should talk to your doctor right away. While potassium can be taken as a supplement, I suggest eating potassium rich foods. Ask your pharmacist if any of your medications deplete potassium.