1 medium size banana provides about 3 grams of dietary fiber, making banana an excellent source of fiber. (fitwirr.com)
One medium - sized banana contains about 10 percent of your daily potassium and vitamin C needs and also supplies a good dose of fiber, folate and iron. (healthyeating.sfgate.com)
Eating a medium - sized banana provides you with 12 percent of the dietary fiber that you need for the day. (healthyeating.sfgate.com)