Banana chips — like whole bananas — boost your intake of potassium. A 4-ounce serving of banana chips provides 607 milligrams of potassium, or 13 percent of your recommended daily intake, according to the NYU Langone Medical Center. Potassium, along with other minerals, such as sodium, controls your blood pressure levels. It also helps your nerves communicate, aids in muscle contraction and maintains your body’s fluid balance. Consuming banana chips helps to prevent the nausea, fatigue and constipation that can develop due to potassium deficiency.