Whether the color of eggshell is red or white is completely determined by the variety of chicken, that is, by genetic factors, and has nothing to do with the nutrition of eggs. The results showed that the nutritional indexes of the two kinds of eggs were different, but the difference was very small.

Because China people are superstitious about red eggs, free-range eggs and idiots, some farms illegally add pigments to feed, which makes these eggs unsafe.

In addition, the eggshell of white-shelled eggs is thinner, so you can get more edible parts by buying the same number of eggs.