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Egg Whites


Egg Whites

In an egg white, the white is the part of the egg that surrounds the yolk. It only turns white when cooked because of a chemical change. While the yolk is the primary source of nutrition in an egg, there is some nutrient content to the egg white. The technical name for the egg white is the albumen.

About Egg Whites

According to the U.S. Department of Agriculture, one large egg white is about 33 grams in weight. Of this, about 29 grams is water. There are only about 16 calories in a single large egg white. With about 0.1 grams of fat and 0.2 grams of carbohydrate, egg white is not a significant source of these nutrients.

Of the 33 grams in a large egg white, about 10 percent, roughly 3.6 grams, is protein. This accounts for approximately half of the total protein content of the egg (including the yolk). All of the amino acids essential to human beings are contained in egg whites. Because the egg white contains none of the cholesterol in the total egg, but roughly half the protein, people separate egg whites from the yolk as a low fat source of amino acids.

According to the U.S. Department of Agriculture, about one in every 30,000 eggs in the United States has some detectable salmonella infection. Infection is relatively rare though, egg whites can be a carrier of such salmonella infection. It is not recommended to eat raw egg whites. Cooked egg whites are easier to digest. Much more common than salmonella infection, is allergic reaction to eggs, which is more frequently associated with egg whites than egg yolks. Those with acute egg white allergy are unable to digest the albumen.

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