If you eat bananas every day, what happens to your body?

You'll get plenty of potassium

It's not just bananas that are prized for their unique and delicious taste, but also because they're a great source of potassium, an electrolyte and mineral our bodies need for a variety of functions. One medium banana contains 422 milligrams of potassium, which is about 9 percent of the daily potassium requirement for an average adult, according to Medical News Today. Your body keeps blood pressure down, maintains fluid levels, and reduces your risk of kidney stones when potassium levels are adequate. "Bananas are overall health promoters. We need potassium for cardiovascular health and cognitive function," said Russell Rosenberg, CEO of the National Sleep Foundation. In addition, it's important to know that potassium can be overdone in the diet. It can cause nausea, muscle cramps, and chest pains, according to the American Kidney Fund. If your potassium intake gets too high, you can even suffer a heart attack — so try to maintain a balance in your diet and keep an eye on your intake.