Potassium helps us maintain proper electrical and cellular body functions. Adequate intake of potassium, 4.7 grams per day, recommended by Institute of Medicine can do the following:

1. maintains lower blood pressure levels
2. prevents kidney stones
3. improves glucose metabolism
4. decreases bone loss
5. helps building muscles

Lack of potassium can lead to fatigue, muscle weakness, and slow reflexes.
Taking potassium pills is generally unnecessary. One can have adequate amount of potassium by consuming vegetables (dark greens, lima beans, peas, tomatoes, and potatoes with skin), fish (salmon, cod, flounder), fruits (bananas, citrus, apples), and lean meats.