Potassium levels can easily be lowered through dietary changes. Decreased consumption of potassium-rich foods, such as asparagus, potatoes, oranges, bananas and salt substitutes may result in significant declines in potassium levels, according to MedlinePlus. For highly elevated levels, physicians commonly prescribe diuretics and other potassium-reducing medications.
In cases of slight to moderately elevated levels, in addition to avoiding more commonly known potassium-rich foods such as bananas, those looking to decrease their potassium levels may strive to avoid milk, red or processed meat, sports drinks and processed baked goods that are all high in potassium, according to Heallthline. Additionally, though some herbs are effective in treating ailments associated with elevated potassium, those with elevated potassium levels should avoid herbs such as alfalfa and nettle that have been demonstrated to increase potassium levels. Lastly, consuming more water and regularly exercising significantly reduce potassium levels.
With highly elevated potassium levels, physicians may prescribe water pills to flush the body of the excess potassium, or they may attempt an intravenous injection of glucose or insulin for long enough to determine the etiology of the elevated potassium, MedlinePlus states. Physicians may prescribe medications that assist in removing potassium from the intestines prior to it being absorbed into the rest of the body.