Nectarines are similar to peaches, but are yet a different fruit. The best way to identify the difference between a nectarine and a peach is by the lack of fuzz on the nectarine. Nectarines are more delicate than peaches and bruise very easily. Nectarines are low in calories and have no sodium or cholesterol. Nectarines are high in Vitamin C, Dietary Fiber, Vitamin A, Niacin and Potassium.