Compared with other animal-derived foods, eggs contain higher elements such as protein, esters, amino acids and minerals. However, there are many commodity names of eggs in the market, such as inorganic eggs, green eggs, pollution-free eggs, farm soil eggs, and female ducks laying eggs for the first time.

From a scientific point of view, there are two kinds of eggs:

1, according to the color of eggshell, it can be divided into four types: white shell egg, pink shell egg, brown shell egg and green shell egg.

2. According to the feeding methods and varieties of laying hens, they can be divided into free range eggs, native eggs and common eggs.

According to the egg quality and safety standards, the Ministry of Agriculture issued three labels: pollution-free egg, green egg and organic eggs, but there are no other egg labels.

Therefore, how to correctly understand the nutritional value of different varieties of eggs? Are the eggs laid by domestic chickens really more nutritious?

In fact, the nutritional value of eggs is not much different. The different color shells of different kinds of eggs come from the different genes of chickens, not the nutritional gap. The researchers determined and analyzed various nutritional contents of different kinds of eggs, including protein, various amino acids, fats and vitamins, and found no obvious differences.

The reason why the taste of earth eggs may be better than that of other eggs is that the taste varies from person to person!

Most people think that earth eggs are more fragrant, because some fat-soluble flavor components will be transferred to the eggs when they eat insects and chicken food in the environment, which makes the earth eggs have a different flavor. Therefore, if you think the earth eggs are delicious, you can buy them; But if it is only for the so-called "good nutrition", there is no need to buy earth eggs.

It must be mentioned that in terms of safety, native eggs are more susceptible to infection. The price of earth eggs is slightly higher because of the difficulty in preservation and the small production quantity. However, the feed for eggs laid by non-native chickens is scientifically proportioned, and the nutrient content is comprehensive and balanced. Moreover, the production environment is scientifically treated, which is conducive to the preservation of newborn eggs, so as to prevent the eggs from being contaminated by bacteria and causing unsafe eating.

Therefore, correctly understanding the nutritional value of eggs and not blindly chasing the wind to buy "expensive eggs" can save money!