You may think that as long as you eat a banana every once in a while, you're good on the potassium front. But the truth is, most of us need to up our intake of foods high in potassium.

"Only about 2% of people in the U.S. consume enough potassium," says Jonathan Valdez, RDN, a registered dietitian and owner of Genki Nutrition.

Potassium is an electrolyte lost through sweat, so if you work out a lot, it's especially important that you keep on top of your intake. It's also crucial for heart health, including managing blood pressure. While you might already know that eating foods with a lot of salt can raise blood pressure, potassium intake impacts it too (specifically, not consuming enough). "Potassium has a strong relationship with sodium to help keep fluid balance in the body," says Vald