Why egg yolk is harmful and egg white is beneficial?

That misconception needs to be addressed immediately before anyone else repeats it, egg yolks are not bad, and it is a theory that belongs to the past. This misunderstanding developed from a single link that the public took too seriously. Egg yolks contain dietary cholesterol. For several decades, medicine viewed dietary cholesterol as directly linked to cardiovascular diseases. The logic is that the more cholesterol you intake, the higher your blood level becomes. And the higher your blood level becomes, the greater your chances of developing heart diseases.

In reality, however, approximately 75 to 80 percent of the cholesterol produced in your body is synthesized endogenously and independently of your eating habits. Once you ingest dietary cholesterol, the body adjusts its cholesterol production levels to compensate for the excess. Therefore, for the majority of individuals, eating egg yolks will have little effect on your LDL. Those few individuals who experience heightened blood cholesterol levels due to their diet belong to the minority group.

To start with, egg yolks are packed with essential vitamins A, D, E and K. They also provide a sufficient quantity of the vital choline substance. This compound is responsible for proper functioning of the brain, liver and fetus neurodevelopment. People lack sufficient amounts of this nutrient, making this product beneficial. The carotenoids, such as lutein and zeaxanthin which prevent blindness, come from the yolks. Healthy fats are found in the yolk. And, lastly, the most distinctive feature – the flavor.

White of an egg contains high-quality proteins, very low caloric value and close to no fats whatsoever. Thus, for someone on a diet or eating numerous eggs on a daily basis, using only the egg whites may seem like a reasonable choice.

Nevertheless, getting rid of egg yolks is getting rid of the nutritional values of eggs as well. Listen to the scientific community and enjoy your eggs without limitations!

How does the chick break its egg shell with such a fragile beak? Does the chicken help it out?

 We usually think that the chick breaks his egg shell, freeing itself from its hot and suffocating prison directly into the gentle cool morning breeze, using only its beak. This is not true.

I think I want to go back…!

A number of things happen as hatching time draws near. As the eggs develop, water escapes through the shell in the form of water vapor. This water loss creates an air space at the broad end of the egg, where the chick is able to take its first breaths. The shell also becomes thinner as calcium from the egg shell is incorporated into the skeleton of the chick as it develops.

They don't really use the beak to break the shell. A few days prior to hatching, the chick will develop an egg tooth, a small sharp calcium bump on the top of its beak.

The egg tooth is a tiny structure that helps the chick break through the last barrier that separates them from the cruel world.

Notice the egg tooth on the tip of this killdeer chick’s beak. Usually, the egg tooth falls just after the first pecks.

They can even use the beak in part of the process, but in the first few pecks it would be impossible, since the chick is curled up inside the egg:

As the chick uses its egg tooth, in conjunction with a special hatching muscle at the back of its head, it begins chipping away at the egg, creating a small hole, called a “pip.”

The pip creates a continuous supply of air as the process of hatching begins. From within the egg, the chick will begin scratching the shell in a circular path around the large end of the egg, weakening the shell. The chick is then able to burst the egg open.

I got it, Mom!

Interestingly, both the egg tooth and hatching muscle are also present in reptiles.

You can see an adorable baby chick hatching in the video below:

So cute…