Potassium is a mineral that is essential for optimal health. This mineral is found in a variety of foods, including milk, cheese, whole-grain breads, avocados, brown rice, garlic, red meat, poultry and potatoes. It is also commonly found in multivitamin supplements and can be obtained through stand-alone supplements.
Fluid Balance
Potassium works in conjunction with sodium to help regulate fluid levels in your body. Excess fluid is stored in your body's tissues and can contribute to weight gain. Insufficient body fluids can contribute to dehydration, which can produce symptoms such as fatigue, muscle weakness and impaired cognitive function. Excess fluid in your body can also constrict your arteries and blood vessels, which can contribute to elevated blood pressure and place strain on your heart, according to Phyllis Balch, author of "Prescription for Nutritional Healing."
Muscle Function
Potassium is linked to proper muscle function. This mineral helps regulate muscle contractions and may help reduce muscle spasms and the effects of restless legs syndrome, according to Balch. It also aids in muscle coordination and proper reflexes. Muscle contraction is also essential for productive exercise.
Nutrient Absorption
When your body metabolizes carbohydrates, fats, proteins, minerals and vitamins from food sources and supplements, it transfers these nutrients to muscle, connective tissue, bone and organ cells through your bloodstream. The ability of cells to absorb these nutrients is essential for optimal physical and cognitive function. Potassium helps nutrients pass through the outer membranes of cell walls, improving nutrient absorption, according to Balch.
Hypokalemia
Hypokalemia is simply a deficiency of potassium in your body. This is a potentially life-threatening condition, according to the University of Maryland Medical Center. It is typically caused by poor potassium absorption or elimination of potassium through urine, rather than by insufficient intake of this mineral. Hypokalemia may also cause symptoms such as gastrointestinal distress, muscle cramps, irregular heart rhythms and muscle weakness.
References
- "Prescription for Nutritional Healing"; Phyllis A. Balch, C.N.C.; 2010
- University of Maryland Medical Center: Potassium
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