One large (53g) Grade A egg contains 6 g of protein and only 70 calories
Eggs are an excellent source of choline . . . and a good source of high-quality protein, vitamin B12, phosphorus and riboflavin.
Every single B vitamin is found in eggs, as is a complete range of amino acids, making eggs a complete protein. High-quality protein helps build muscles and allows people to feel full longer and stay energized.
Eggs are a good source of several minerals that can be hard to get in other foods, such as iodine and selenium. Eggs are also one of the few foods that are naturally a good source of vitamin D, which helps build strong bones with the help of calcium.
For as many nutrients as they have, eggs are a relatively low-calorie food. There are just 71 calories in a large egg. There are no carbohydrates or sugars, and only 5 grams of fat (7 percent of your daily recommended intake).