Bananas are a popular fruit that also happens to have a lot of health advantages. Because of their fiber and antioxidant content, they may benefit digestive and cardiovascular health, among other things. They may even help with weight loss because they are low in calories and high in nutrients. Generally speaking, fruits are considered nutritious if they contain more nutrients than calories. Bananas meet this criterion: one banana has about six grams of protein and only about 100 calories. It is also a good source of vitamin B6, magnesium, and potassium. The daily value (DV) of vitamin B6 is 1.8 mg; of magnesium is 320 mg; and of potassium is 3000 mg. A banana provides more than half your daily value of these three nutrients. However, not all varieties of bananas are created equal. For example, an average banana has about 150 calories but also contains 8 g of fat and nearly 50 mg of sodium. Most of this energy comes from sugar, which makes them relatively unhealthy. However, there are specialty banana varieties that are low in sugar and high in antioxidants. For example, Nature's Own Banana Nutri-Grain bars have 110 calories, 5 g of fiber, and less than 3 g of sugar per bar. They are also rich in vitamins B6 and E and minerals such as calcium, iron, and zinc.