Eggs continue to be the ideal protein-delivery system and have been for the last 30 years. Add it to any meal, breakfast, lunch or dinner, and pack a 6-gram protein punch. Protein fuels the muscles, boosts metabolism and keeps hunger at bay. These little round, white delectables are one of the best sources of protein that you can eat everyday. Eggs have gotten an undeserved bad rep but they still are a great source of healthy nutrients, especially helping to keep you fuller longer and stave off cravings.