Researchers compare: Why organic eggs are so much healthier

Balanced diet: that's why organic eggs are healthier
Only a few days until Easter: In many German households, eggs are often served on the table around the Christian festival. Both for animal and nature conservation reasons, organic goods are generally recommended here. Organic eggs have yet another advantage: They are healthier than conventional ones, as German researchers have now found in a comparison.

No Easter without eggs
Eggs are traditionally booming at Easter. While they still have a pretty bad reputation for health, many experts no longer consider cholesterol in food to be a health hazard. Eggs are valuable nutrients. In addition to protein and fat, it also contains minerals such as phosphorus, potassium, calcium and iron as well as vitamins A and B. It is best to use organic eggs because, according to German researchers, these are healthier than conventional goods.

Organic eggs with health benefits
Some citizens refrain from eggs because of concerns about bird flu or salmonella. With correct preparation, the possible risks can largely be excluded.

Eggs should be fully boiled in boiling water to avoid health hazards when blowing eggs.

Eggs are best stored in the egg compartment of the fridge - with the pointed end down, then they will last longer.

For animal and nature protection reasons, it is best to buy organic eggs. These also have a health advantage, as scientists from the University of Hohenheim report.

Better aroma and healthier
According to Prof. Dr. Michael Grashorn from the Institute of Farm Animal Science at the University of Hohenheim has a better flavor of organic eggs and is a little healthier.

A comparison by the poultry scientist of organic eggs with eggs from free-range husbandry showed that the laying out of organic laying hens in the green brings more variety to their diet.

However, the supply of nutrients is somewhat less favorable: In organic eggs, the yolk content drops and the bacterial load increases, according to a message.

The more balanced diet is important
As with humans: It’s the more balanced diet. Since free-range organic chickens on the meadow often peck chamomile or other plants with essential oils, organic eggs have a better aroma and more food contains more omega-3 fatty acids due to the increased eating of plant components.

In addition, the egg white of organic eggs also has a better consistency. It is firmer and more gelatinous. "This is due to the higher activity of the egg white enzymes and the stronger immune system of the organic laying hens," said Prof. Grashorn.

However, free-range farming means that organic laying hens get a little less nutrients, in particular the essential amino acids and the energy balance are lower. This reduces the yolk content.

"In general, however, the bacterial load is somewhat higher," said the scientist. “Frequent infections of organic laying hens also cause the shell color of their eggs to be more variable. Eggs from conventional farming have a more uniform shell color. "

Germans prefer intensely colored yolks
The yolk color of organic eggs is less intense. They are paler, more yellow. "This is because organic dyes cannot be used as feed additives in organic farming," explained Prof. Grashorn.

"In general, German consumers, especially in central to southern Germany, want more intensely colored yolks," said the expert.

“Accordingly, these are increasingly being offered in retail stores. Even the Dutch produce eggs with intensely orange yolks especially for the German market, while they prefer yellow yolks themselves. ”

Thin eggshells are not due to avian influenza
As the university announced, the eggshells are particularly thin this year. There are several reasons for this: feeding errors or poorer absorption of calcium by older laying hens.

However, Prof. Grashorn can certainly counter fears that the thin shells could be related to avian influenza: "It is true that viral diseases, for example of the respiratory tract, interfere with the shell formation and thus thin-shelled eggs are formed. Avian influenza H5N8 is not the reason for the frequent occurrence of thin-shelled eggs. "

"The probability that eggs are bought from an infected farm" is extremely low, according to the scientist. If such eggs were to come onto the market, the number would be very small in relation to the total number of eggs and would not explain the widespread occurrence of thin-shelled eggs ”.

"In addition, infection of humans with avian influenza via eggs has not yet been detected," said Prof. Grashorn. "The route of infection of avian influenza goes through the mucous membranes of the respiratory tract." (Ad)

Author and source information

Video: Stanford Health Care Dietitian Discusses Organic Versus Conventional Foods (October 2021).