Free range eggs can also call it earth eggs, while firewood (earth) eggs refer to artificial feeding. The feed of chickens contains almost no chemical elements, such as rice, vegetables, ground insects, etc. (all kinds of nutrition in the feed are more even). Chickens nest and lay eggs in normal environment, which has high nutritional value.

Ordinary eggs are eggs produced in general chicken farms, which are often called "foreign eggs". Because of the special laying hens and compound feed, their nutritional value may not be as good as that of local eggs. But this is not the case. The cholesterol and fat content in the yolk of foreign eggs is much lower than that of native eggs, which is more suitable for the elderly.

: the nutritional value of eggs

1, the amino acid ratio of egg protein is very suitable for human physiological needs, easy to be absorbed by the body, the utilization rate is as high as over 98%, and the nutritional value is very high.

2. Eggs are considered as nutritious foods, which contain protein, fat, vitellin, lecithin, vitamins and minerals such as iron, calcium and potassium.

3. Every 100 grams of eggs contains protein 12.8 grams, mainly ovalbumin and ovoglobulin, which contain 8 kinds of amino acids necessary for human body, and are very similar to the composition of human protein. The absorption rate of protein in eggs can be as high as 98%.

4. Every 100 grams of eggs contain fat11~15g, which is mainly concentrated in the yolk and is easily digested and absorbed by the human body. The yolk is rich in lecithin, sterols, egg yolk and calcium, phosphorus, iron, vitamin A, vitamin D and B vitamins.

5. Eggs are rich in high-quality protein. Every100g of eggs contains13g of protein. The protein contained in two eggs is roughly equivalent to the protein of 50g of fish or lean meat. The digestibility of egg protein is also the highest among milk, pork, beef and rice.