UAMS Department of Neurobiology and Developmental Sciences - Nerves of the Back. Some of the material presented in these tables is contained in the book: MedCharts Anatomy by Thomas R. Gest and Jaye Schlesinger. Published by ILOC, Inc., New York. Copyright  1995.
Calories in egg yolk vs egg white. Most of the calories in eggs, as well as all of the fat content, is in the yolk. The yolk from a large egg contains about 55 calories and just over 180 mg of cholesterol. An egg white contains 17 calories and no fat content at all.
One large egg white contains 3.6 grams of protein -- compared with 2.7 grams of protein found in egg yolks, according to the U.S. Department of Agricultureâs National Nutrient Database. Although egg whites are a source of dietary potassium, the yolks are rich in vitamin A, phosphorus, iron, zinc and vitamin D.