A wide variety of eggs have little difference in nutrients
According to experts, the nutrients of eggs are mainly protein, vitamins, fats and minerals. The variety of eggs, in general, the nutritional composition is similar, but the different farming environment and management methods may cause subtle differences, such as the taste of the egg.
Let’s talk about a set of data:
Analysis of nutrient composition of different kinds of eggs
It can be seen that a variety of eggs is likely to be a “concept”, just a way of doing business, don’t let the “concept egg” fool you.
Eggs of different eggshell colors are almost the same
“For a hen, the color of the eggshell is relatively fixed. In fact, all the eggshells are white at first. In the late stage of eggshell formation, some types of hens secrete pigments and make the shells change. In different colors.” Experts say that the color of the eggshell is mainly determined by a pigment called protoporphyrin (also known as egg porphyrin), which is deposited on the outer layer of the eggshell and the membrane on the shell to form what we see. Egg color. The eggshell is opened and the inner surface is the same color and is white.
The protoporphyrin pigment is synthesized from the eggshell gland of the hen. The ability of hens to synthesize protoporphyrin is individual, even if the egg shell of the same breed hen has a certain color difference. That is to say, the color of the eggshell depends on the type of hen and is “born”, regardless of other human factors. In addition, pigments obtained or added to commercial feeds cannot be deposited in eggshells. For example, if riboflavin and beta-carotene are added to the chicken feed, the color of the egg yolk will become darker, but the color of the eggshell may not change.
Eggs of different eggshell colors are almost the same. Scientific research data proves:
Comparison of Nutritional Components of Eggs with Different Eggshell Color
The “fresh” and “safe” of eggs are the most important
Eggs, like other commodities, have a certain shelf life. Whether you buy “earth eggs”, “grain eggs” ordinary eggs, or choose white shell eggs, red shell eggs, fresh, safe is the most important, do not need to pay too much attention to their names and colors.