1. In terms of being beneficial to the heart, boiled eggs do not add a drop of oil, the cooking temperature is not high, and the cholesterol in egg yolk does not contact with oxygen (once cholesterol is oxidized, it will become one of the most serious cardiovascular health threats), so it is the most beneficial way to eat.

2. In terms of protein's best digestion, the protein digestibility of boiled eggs is as high as 99.7%, which can be almost completely absorbed and utilized by human body. The protein digestibility of steamed eggs is 92.5%.

3. In terms of vitamin preservation, boiled eggs with shells have low heating temperature and sufficient nutrition preservation. Water-soluble vitamins such as riboflavin and lutein will lose a little when steamed eggs are heated.