The University of Minnesota points out that fruits that are frozen immediately after harvest retain more nutrients than those processed otherwise. Freezing is an effective method for food preservation. At the time of eating, the nutritional value of frozen fruits is similar to that of fresh fruits.
Fresh and frozen fruits have the same carbohydrate, protein and fat types as fresh fruits right after harvest. Although there is a variable loss of nutrients when food is processed, the nutritional quality of frozen fruits is just as good for you as those of fresh fruits. So, eat a variety of fresh and frozen foods as part of a balanced diet!