Harvard University nutrition experts confirmed that the egg yolk is useful because it contains a high percentage of choline, which is necessary for the functioning of the liver, and also protects against breast cancer.

According to several recent studies, eating eggs regularly reduces the risk of breast tumors up to five times.

The active substance in eggs is choline, and it is found in some foods that people eat, such as eggs, coffee, and whole milk.

The recommended daily intake of choline for men and lactating women is 550 mg, pregnant women 450 mg, and the rest of women 425 mg, and the yolk of one egg contains 125.5 mg of choline, so eating the yolk of four eggs covers the daily need, and besides that choline It is also found in liver, yeast and cauliflower.

On the other hand, one egg contains cholesterol that is 60 milligrams more than the daily average that a person eats, which means that these levels pose risks for people who suffer from high cholesterol, which can be avoided by replacing egg whites in place of eating whole eggs.