Banana Chips is one snack that is liked by many people.Although this snack boasts fiber and a few vitamins and minerals, these benefits are quickly offset by the fat, calorie, and sugar content.Snacking on banana chips means you'll get some nutritional value for your calorie investment. The chips are a good source of some essential vitamins, especially magnesium. Your body needs magnesium for energy production, cell-to-cell communication and DNA synthesis, an important part of cell growth. It also works together with other minerals like calcium and phosphorus to make up bone and tooth tissue, which means eating foods high in magnesium may help keep your skeleton strong. A serving of banana chips will net you 32 milligrams of magnesium.