One medium nectarine has 60 calories. Nectarines have no sodium, saturated fat or cholesterol, and they have only 1 gram of fat, making them a healthy part of a balanced diet.
Nectarines are similar to peaches, except they have smooth skin instead of fuzzy skin. They are a good source of vitamin C and contain little fat, making them an ideal addition to a low-fat or low-calorie diet. One nectarine also contains 250 milligrams of potassium, 1 gram of protein, 2 grams of fiber and 8 percent of the recommended daily intake of vitamin A. This fruit should be stored in a paper bag until it is ripe enough to eat.