Egg Whites contain high levels of proteins and low cholesterol. While egg yolk may contain more nutrients than egg white, egg yolk contains most of the cholesterol. This makes egg whites more preferred. Egg whites also contain potassium, magnesium, phosphorus, copper, zince, iron, riboflavin, selenium, folate, Vitamin B12, niacine, and choline. It can help in weight loss management because it can make one feel fuller with less the cholesterol. It also improves the immune system and fights against various infections which may cause serious diseases. It is also used for treating macular degeneration and treating cataract. It is also good for maintaining strong bones because of its calcium content.