Notes On Eggs, And An Egg Test In Thailand The Composition Of An Egg Eggs contain dozens of different proteins, various essential fats, and a wealth of B vitamins, minerals, and vital nutrients such as Selenium and Choline. They are relatively low calorie foods that pack a lot of nutritional benefits . Proteins are long-chain Amino acids. Some of these proteins occur mainly in yolks, others only in egg whites (aka albumen), some in both. Egg white makes up about 2/3 of the total weight of a fresh egg, but depending on breed of chicken that laid the egg, this varies. Some references claim the albumen can be as little as 60%, the yolk as much as 40% of the total, but in my experience that is not typical. [see the results of my real world egg testing below. Egg white, aka albumen, contains about 10-12% protein, 88-90% water. It is a little less than 60% of the total protein content of an egg, and consists of 4 alternating layers of thick/thin albumen. The albumen contai...
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