Eggs are necessary for healthy body

Eggs contain choline, which is necessary for healthy cell membranes in the human body. Eggs also contain all the essential protein, minerals and vitamins, except Vitamin C. But egg yolks are one of few foods that naturally contain Vitamin D. Choline stimulates brain development and function and helps preserving memory. Eggs also are good for your eyes because they contain lutein which helps prevents age-related cataracts and muscular degeneration. In fact, eggs contain more lutein than spinach and other green vegetables. 

The color of the egg shell is not related to quality, nutrients or cooking characteristics. White shelled eggs are produced by hens with white feathers and white ear lobes. Brown shelled eggs are produced by hens with red feathers and red ear lobes. Brown egg layers usually are slightly larger and require more food, thus brown eggs usually cost more than white eggs. An egg shell has as many as 17,000 pores over its surface. A whole egg is about 3 tablespoons worth of liquid, the egg yolk measures about 1 tablespoon of liquid. There are about 70 calories in an uncooked egg and 77 calories in a cooked egg.

Source:interestingtopics.net