What are the causes of high levels of potassium?

INPUT-OUTPUT : High levels of potassium can occur due to increased intake of high potassium containing foods, nutritional supplements etc 2. Changes in acid base balance in the body 3. Decreased excretion of the potassium by the kidneys. Most often, it is a combination of 2 or more causes.Very frequently, kidney is always one of the culprits.If you have this problem, please consult md.