A 100 gram serving of tilapia fish contains 128 calories, according to the national nutrient database from the United States Department of Agriculture. Other nutrients include 0.94 grams of saturated fats, just over 26 grams of protein and 150 UI of vitamin D.
Fox News points out that tilapia is the fourth most popular fish in America. Tilapia from the regions of Ecuador, United States and Canada are regarded as the best. Seafood Health Facts notes that tilapia is usually sold with the bones removed. Weight of an individual filet ranges from 3 to 9 ounces, with 5 to 7 ounce servings being the most popular.