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.
Low in Calories. One boiled egg white contains about 17 calories -- less than 1 percent of your calorie intake in a 2,000-calorie diet. Compare this to a whole egg, which has 72 calories. If you are watching your weight, you can prepare consume 5 boiled egg whites for slightly more than half the calories in 2 boiled eggs.