A potassium blood test measures the potassium level in your blood to check your general health and diagnose conditions.

There's some evidence that too little potassium-- a nutrient in foods like bananas, squash, and potatoes -- might have a link to diabetes. The reason for the connection: The role of insulin in type 2 ...

Potassium chloride is a supplement that can treat low potassium levels or hypokalemia. Possible benefits of potassium chloride include reducing high blood pressure, reducing the risk of heart disease, ...