Did you know that egg contains the highest quality food protein known for people. It is so huge that that egg protein often is the standard by which all other proteins are judged. For human nutrition egg protein is second only to mother's milk as to the essential amino acids it provides.
For only 75 calories that an average egg has your organism will receive 13 essential nutrients in different amounts, including high-quality protein, folate, choline, iron and zinc.
A Large-sized egg supplies 12.6% of the daily need for protein which is the highest quality protein of any food. And more than a half of the egg’s protein is in the white and the rest is in the yolk. One egg of any size equals one ounce (28,3 grams) of poultry, lean meat, fish or seafood in the food groups.
Choline
Egg yolks are important and excellent source of choline. Choline is an important element in a diet of a pregnant woman. A Large egg yolk contains 125 mg of choline what states for 23% of a pregnant woman’s daily needs. Choline is a very important factor in the development of infants’ memory functions.
Do you know what causes the color of the yolk? It gets its color from the yellow-orange plant pigments called lutein and zeaxanthin (it is 166 mcg of them in a Large egg yolk). They have been shown to reduce the risks of cataracts and age-related macular degeneration, which is the leading cause of blindness in those 65 and older. And what is amazing, the yolk’s lutein and zeaxanthin may be more easily absorbed by the body than the lutein and zeaxanthin from other sources. 