Avgolemono soup is a traditional Greek soup that has a rich citrus flavor. It is served hot or cold, as an appetizer and as a main dish. Home cooks and chefs alike improvise portions and ingredients to create variations on this classic, Greek comfort food, so the exact calories per serving vary depending on the recipe.

Basic avgolemono soup ingredients include chicken broth, egg yolks, lemon juice and orzo pasta or rice, according to a recipe from CDKitchen.com. Variations abound, as described at Boston.com and NYTimes.com, and include the additions of diced chicken, lemon zest, whipped egg whites and minced dill.

On average, a one cup serving of avgolemono soup has 160 calories and provides eight grams of carbohydrates. Of those 160 calories, 90 come from the fat content of the dish.

A one cup serving has 10 grams of fat, including 2.5 grams of saturated fat, according to MyPlate. Avgolemono soup does not provide empty calories. It has 10 grams of protein in that eight fluid ounce serving.

The average man should strive to include 56 grams of protein in his daily diet, while the average woman should strive to include 46 grams of protein. Avgolemono soup is the perfect dish to include in a protein-rich diet as a result.