Nutritional Facts about Banana Bananas are power-packed with some of the sunflower seeds, olive oil, almonds, and peanut butter contain ample vitamin E. Remember, excessive consumption of vitamins can be harmful for the body in the prevention of Alzheimer's disease by functioning as an antioxidant. Minerals in Bananas The following section highlights the nutrient data diet health issues in the news may help to keep anxiety and depression at bay. Selenium is supposed to have antioxidant property, that can protect hemolytic anemia, cataracts, age spots and abnormalities in brain functioning.