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

Add Yahoo as a preferred source to see more of our stories on Google. What is potassium? Aside from the broad strokes knowledge you may know, like it's naturally found in bananas and it's great ...

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 ...