Eggs, also known as green eggs, are eggs laid by crow chickens, and there is another, not very standardized name for them called green eggs. Green eggs on the pregnant woman can effectively improve the loss of appetite during pregnancy, indigestion, nausea and vomiting and other symptoms, improve the quality of sleep, enhance the absorption of nutrients for pregnant women, promote the healthy growth of the fetus; on the children can promote growth, enhance memory, improve IQ, enhance immune function; on the middle-aged and elderly people can reduce blood lipids, soften the blood vessels, and prolonged life and other effects. Of course, not all eggs are green shell, there are also white shell, which is related to the rearing environment of the chicken and eat the feed. It does not affect the nutrition of the eggs. As for how to tell the difference: real crow's eggs have thinner shells and are smaller in size, then white or green shells with a rougher surface. Ravenous eggs in the light, you will find that the shell above a similar tortoise shell-like lines.