Rich source of potassium

Tomatoes are a rich source of potassium; a cup of tomato juice has 534mg of potassium and half a cup of tomato sauce has 454mg of potassium. Physiologically, potassium plays an important role in transmission of nerve signals, fluid balance in the body and many other important chemical reactions. Potassium is used to treat high blood pressure, insulin resistance, chronic fatigue syndrome, muscle weakness, and even bloating and intestinal disorders.