Supplement:

Eggs, also called chicken eggs and eggs, are laid by hens. There is a hard shell outside, and there are air chambers, egg whites and yolk inside. Rich in cholesterol and nutrition, an egg weighs about 50 grams and contains 7 grams of protein. The amino acid ratio of egg protein is very suitable for human physiological needs, easy to be absorbed by human body, with a utilization rate of over 98% and high nutritional value, and it is one of the foods that human beings often eat.