Bananas are a great portable source of quick energy and are rich in potassium, which is needed to regulate nerves, heartbeat and, especially, blood pressure. Diets rich in potassium and magnesium (which is also found in bananas) can reduce the risk of stroke.
As a super source of vitamin B-6, bananas can also aid your immune system, help form red blood cells, ensure a well-functioning nervous system, and assist protein metabolism. So enjoy a banana each day, at breakfast on your whole grain-cereal or before your workout at the gym.
Not a banana fan? Orange juice, milk, tomato products, and beans are other good sources of dietary potassium.