A fresh banana gets about 75 percent of its weight from water, according to the USDA. The drying process
removes about 96 percent of this water content, making dehydrated bananas a far more concentrated source
of calories and nutrients than the source fruit. Ounce for ounce, dehydrated bananas are about four times
higher in fiber, potassium, carbohydrates, sugar and calories than the fresh variety. They're only slightly higher
in vitamin B-6, however, largely because it's a water-soluble vitamin. Dehydrated bananas are actually about
20 percent lower in vitamin C, a water-soluble vitamin that's particularly sensitive to heat.
