What is the nutritional difference between native eggs and foreign eggs? Which one is better? How to distinguish native eggs?

When it comes to which kind of eggs are more nutritious, many consumers generally believe that native eggs have higher nutritional value, because they are laid by "ground chickens" raised in the original method. What's the difference in nutrition between native eggs and foreign eggs?

People are used to dividing eggs into native eggs and foreign eggs.

Native eggs: eggs laid by chickens scattered in rural empty fields, foraging in woodland every day, and growing on natural foods such as live food and weeds.

Foreign eggs: completely different from native eggs in the growth environment, the so-called foreign eggs are the output of hens fed by centralized management and centralized ingredients in large-scale chicken farms, with relatively large production and larger size.

Since foreign eggs are the main force in the market at present, we now call them ordinary eggs.

Whether there is a difference in nutrients between native eggs and ordinary eggs has always been the focus of foodie. Although folklore says that native eggs are more nutritious than ordinary eggs, it is an indisputable fact that there is a big difference in price between them.

What is the nutritional difference between native eggs and foreign eggs?

However, the test results of nutrition experts show that there is almost no big difference in nutritional composition between native eggs and ordinary eggs. because of scientific feed formula and balanced supplement of nutrients, eggs laid by ordinary chickens are generally larger and contain nutrients (protein, trace elements, etc.) no worse than native eggs.

On the contrary, free-range native chickens lay relatively small eggs because of uneven nutrition, and eggs are easy to be polluted because of the poor growth environment.

However, in free-range condition, native chickens eat more green leafy vegetables, and the contents of carotenoids and vitamin B2 in egg yolk are high, so the egg yolk is larger and darker.

Therefore, it is inconclusive to judge who is good or bad between native eggs and ordinary eggs. Eggs laid by chickens growing in different environments may be different in taste, which depends entirely on their feelings.

How to tell the difference between native eggs?

Color: when fresh, the yolk of native eggs is usually cauliflower yellow or light orange.

Egg yolk: the egg yolk does not break easily and is very thick.

Protein: the binding degree of protein is very high and it looks very solid.

Egg white:

The egg white is thick.

Eggshell: not very regular, generally thick.

Price: due to the high feeding cost, the cost of pure soil eggs is about 1.5-2 yuan each, so the cheaper ones are likely to be impersonated or imitated soil eggs by chemical means.

How to choose eggs?

First look at the shell: if there is a moldy stain on the shell, do not choose

Second touch the shell: if the surface of the eggshell feels frosty and powdery, it is fresh eggs, and if it is smooth, it is eggs that have been kept for a long time.

The third pair of light: fresh eggs will be translucent.

The fourth flicker: after shaking, there is no sound of water is the fresh eggs.

In addition, you can also sink the eggs into the water. If they sink to the bottom, they will be fresh. If they float sideways, they will last for 3-5 days. If they float upright, they will last for about 10 days. Do not buy any eggs that are not fresh.