Nutritional value of eggs. Which is better white or yolk?

Two to three hours is the optimal time for digesting food in the stomach and breaking down proteins. This is the norm, since when undigested proteins enter the small intestine, the fermentation process begins. The white and yolk of a chicken egg are not digested in the stomach for the same amount of time - the yolk takes about 30 minutes, and the white takes much less

.
Of all protein products, EGG protein is the most easily digestible
.
The amino acid spectrum of egg white is ideal in its composition
.

It is worth saying that the time and speed of absorption of different products can vary significantly. Now let's move on to the time of digestion and assimilation of products

. This time is also commonly called the rate of digestion (assimilation) of products.

Now you know what is digested faster and what is slower, and you can use this knowledge in the fight against extra pounds. The bioavailability of egg protein approaches 100%, that is, all the nutrients included in its composition reach the target organs - muscles

. The loss of egg protein during digestion is minimal, and practically no breakdown products are formed in the intestines.

If you try to make a similar product yourself by mixing egg whites with yolks, you will never achieve the ideal combination of amino acids. Many people ask the question: which protein is better, whey or egg? There are no restrictions on the intake of egg protein, if you are thinking about when to take egg protein, do not rack your brains - the best time is immediately before and after training

. Therefore, manufacturers combine egg protein with casein - this ensures a uniform supply of amino acids into the bloodstream.

Protein absorption rate

Chicken eggs are digested in the human stomach in 45 minutes. If they are boiled hard, they stay in the stomach for 1 hour, and then they are sent further to the small intestine. Eggs take on average 45 minutes to an hour to digest.

. In fact, we are all different, and each of us has different body functions.

Here you will find interesting details about squirrels. We all eat them, but we know so little about them.

. What protein products are most preferable? All essential amino acids are optimally balanced in the egg.

Denatured cooked egg whites are easily broken down by digestive enzymes, are quickly absorbed and leave no waste behind. Following egg whites are fermented milk products: kefir, yogurt, cottage cheese yogurt, cheese (low-fat varieties)

. Products made with the use of acidophilus bacillus have the greatest ability to suppress the decay of proteins: acidophilus curdled milk, acidophilus paste, cottage cheese.

Ordinary homemade yogurt made from sour milk contains wild lactic acid streptococci, but even it can suppress the rotting of proteins in the intestines. MEAT. Meat proteins occupy the last place in the hierarchy of animal proteins

. Meat is never digested or completely absorbed in the body.

What are the benefits of protein

It is a source of nutrients and is 98% absorbed in the human body. In its composition, it contains a minimal amount of fat, which is welcomed by nutritionists as a necessary product for weight loss . Athletes need large amounts of protein to build muscle mass.

One egg contains:

  • Proteins (proteins) in quantities up to 12 g .
  • Fats less than 0.2 g .
  • Carbohydrates are only 1 g .
  • The total calorie content of the protein component is about 48 kcal .

White and yolk

This data reveals the beneficial qualities of egg whites, but what about eggs in general?

Proteins (proteins, polypeptides) are high-molecular organic substances consisting of amino acids connected in a chain by a peptide bond. In living organisms, the amino acid composition of proteins is determined by the genetic code; in most cases, 20 standard amino acids are used during synthesis.

To delve deeper into the processes of protein synthesis, you need to become familiar with the concept of nitrogen balance. It is observed when protein intake is limited during diets aimed at reducing body weight and long-term training without adequate nutrition.

By the term “digestion,” medicine refers to the time that food spends in our stomach. But they form the basis of the diet for a raw food diet, so clarity is important on this issue

. Unfortunately, little attention is paid to this issue, despite the fact that it is fundamental in such a food system. Separate intake does not simply mean sequential consumption of food, which is separated in time, but the intake of one class of food after digestion (assimilation) of another.

Raw egg whites are digested and absorbed extremely poorly, because... it contains a special antitrypsin enzyme that destroys trypsin, one of the main digestive enzymes.

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Boiled egg whites are, in general, an extremely simple food. However, at the same time, they have many useful properties.

.
Egg yolk, of course, also contains nutritional elements - lutein, vitamin A, vitamin B-12
.
But yolks still contain a lot of fat, cholesterol and calories
.
But egg whites are a very convenient and, at the same time, low-calorie component of any healthy diet
. It makes it impossible to overeat and overload with excess calories.

How much protein is in one egg?

One medium-sized egg contains approximately 6-7 grams of protein.

The amount of protein depends on the size of the egg:

  • Small egg (38 grams): 4.9 grams protein;
  • Medium egg (44 grams): 5.7 grams protein;
  • Large egg (50 grams): 6.5 grams protein;
  • Extra large egg (56 grams): 7.3 grams protein;
  • Giant egg (63 grams): 8.2 grams protein.

The average man needs about 56 grams of protein per day, and a woman needs 46 grams.

Conclusion: A medium-sized egg contains about 6-7 grams of protein.

Protein content in white and yolk

Now let's study the protein content in different parts of the egg.

People often mistakenly believe that protein is only found in protein, since it consists only of protein (protein).

The yolk is considered a source of many other beneficial substances, as well as fats.

However, in addition to various useful substances, the yolk contains about half the protein that is contained in the egg.

A large egg contains about 7 grams of protein, with 3 grams coming from the yolk and 4 grams from the white.

So, by eating a whole egg rather than just the white, you not only get more nutrients, but also more protein.

Conclusion : Protein is found in both egg white and yolk, but the protein content in the white is higher.

Does heat treatment affect protein quality?

The high-quality protein in eggs contains all nine amino acids the body needs in the right ratio.

However, how much protein the body can actually use depends on how the eggs are cooked.

The content of protein digestible by the body in raw eggs is lower.

Studies have shown that when consuming raw eggs, the body absorbs only 50% of the protein, while when consuming cooked eggs, the body absorbs 90%.

Another study found slightly different values: 94% digestible protein from cooked eggs, 74% from raw eggs.

However, both of these studies prove that when cooked, protein is easier to digest and absorb into the body.

In addition, when consuming raw eggs, the risk of food poisoning and bacterial contamination is significantly higher.

Conclusion: Protein from heat-treated eggs is absorbed by the body better than protein from raw eggs.

Other beneficial properties of eggs

Eggs are considered one of the healthiest and most nutrient-rich foods.

Their calorie content is quite low; one large boiled egg contains approximately 77 calories.

Despite their low calorie content, eggs contain all the beneficial substances the body needs. One of these substances is choline, which is often deficient in dieters.

Choline is important for many processes in the body. A deficiency of this substance affects brain and heart health, and also increases the risk of neural tube defects during pregnancy.

In addition, eggs are useful for effective weight loss and maintaining a healthy weight.

It is believed that eggs keep you feeling full for a long time, which protects against overeating.

This effect is especially noticeable if you eat eggs for breakfast.

Research has shown that when people ate eggs for breakfast, they consumed significantly fewer calories over the next 24 hours than when they chose another type of breakfast.

In one study, people who ate eggs for breakfast ate 470 fewer calories at lunch and dinner than those who ate oatmeal or cereal for breakfast.

In addition to all this, eggs are inexpensive and easy to cook.

Conclusion: Eggs are rich in nutrients and are easily absorbed by the body. By eating eggs for breakfast, you can reduce your daily caloric intake without experiencing discomfort.

Low Fat And Cholesterol

A whole egg contains 5 grams of fat, 1.6 grams of which is saturated. Egg whites contain only residual fat, not saturated fat. In addition, the white contains no cholesterol at all, while the yolk contains about 186 mg

.
The American Heart Association recommends keeping your cholesterol intake to 300 mg per day
.
People with high cholesterol and those taking cholesterol-lowering medications should consume no more than 200 mg per day
. Egg whites will help you consume other cholesterol-laden foods without the fear of overeating or exceeding healthy limits.

Eggs are a good source of protein

Eggs are a beneficial product for human health, but they are also considered to be useless because they contain cholesterol. A 100g egg contains about 12g of protein, 10g of fat, 370mg of cholesterol and contains no carbohydrates.

They also contain a large amount of chemicals. Elements (almost the entire periodic table): calcium, potassium, phosphorus, magnesium, sodium, chlorine, sulfur, iron, zinc, iodine, copper, manganese, chromium, fluorine, molybdenum, boron, cobalt. And vitamins: B1, B2, B3, B6, B9, B12, E, C, D, A, H, PP, K, etc.

Chicken Beckley Contains Vitamins and Minerals

Egg whites provide us with riboflavin, potassium and selenium. Riboflavin, also known as vitamin B-2, helps speed up the absorption of carbohydrates, fats and proteins

.
It maintains a stable state of the nervous system and a healthy appearance. Potassium is necessary to maintain the body's water balance and stable absorption of minerals
.
It helps regulate blood pressure and heart rhythm
. Selenium is an antioxidant that destroys harmful free radicals in the body.

Convenience

Boiled egg whites are easy to prepare and take with you. Together with grain breads and fruit, they become an ideal breakfast. They help in recovery and muscle growth immediately after training

. Proteins provide a constant feeling of fullness, so you can safely snack on them.

Based on materials from: https://getfit.jillianmichaels.com/benefits-boiled-egg-whites-1644.html

Boiled egg whites are, in general, an extremely simple food. However, at the same time, they have many useful properties.

.
Egg yolk, of course, also contains nutritional elements - lutein, vitamin A, vitamin B-12
.
But yolks still contain a lot of fat, cholesterol and calories
. But egg whites are very convenient and...

Benefits of Boiled Egg Whites

Benefits of Boiled Egg Whites

2015-08-27

Irina Mishina

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Almost every one of us loves to eat eggs for breakfast. We boil, fry them, make omelettes and other dishes. We need them for baking and for making salads.

. But for some, the use of this product is beneficial, but for others it can be harmful.

The eggs of any bird are considered edible. But chicken eggs are still the most common, so they can be called one of the most popular products, eaten in almost all countries of the world.

. Let's consider what composition egg white has, what benefits it brings to our body, and what harm it can cause?

The effect of heating on the properties of eggs

There is a lot of controversial talk about eggs. Some people believe that they can be harmful, others believe that eggs only provide benefits and no harm. This inconsistency arises because raw eggs and cooked eggs are different products with different properties.

The fact is that,

in their raw form they are beneficial, but after heat treatment, especially when we fry, bake or bake, they turn into a less useful, even dangerous product.

In addition to eggs, when frying, heated oil introduces some harmful effects. Moreover, if the smoking point is exceeded when heated, the oil becomes carcinogenic. Keep in mind that the yolk contains fat, and it also changes when heated.

Dangerous:

  • Scrambled eggs with sausage, including sausages, sausages, as well as lard, bacon, and ham. These products contain many harmful impurities.
  • Frying in butter due to its low smoking point (150 degrees), in beef or pork fat, in margarine, etc.

These dishes contribute to an increase in bad cholesterol and carcinogens.

Features of egg white

Chicken eggs can be called a low-calorie product among other animal products. One egg weighs approximately 55-60 g

.
At the same time, for every 100 g of eggs there are 155 kcal. The main calorie content comes from the fatty yolk of the egg, while the white is its dietary part
.
Its calorie content is much less
.
Chicken egg white contains water in the amount of 85% of the total mass
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The rest are organic matter. Of all egg whites, 10% are proteins
. These are ovalbumin, ovomucin and some others.

There is very little fat in the egg white. Their share in this part of the egg is only a third of a percent.

Carbohydrates – 0.75. Such a low content of these components allows egg white to rightfully be called a dietary product, so nutritionists advise people seeking weight loss to eat an egg without a yolk

. This is a great way to get a lot of nutrients without harming your figure.

The cuisine of each country has its own recipes for preparing eggs, in which they can be either the main component of the dish or an auxiliary one. They are eaten boiled or fried. Some even prepare dishes using baked or pickled eggs.

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Many people believe that eating eggs raw is the most beneficial. It all depends on individual taste
.
They are also a necessary component of baking, added when preparing cutlets, salads, and used as a filling for pies
.
Therefore, it is very important to know what microelements are included in this product
. What are its benefits and what are its harms for the human body.

Protein contains a number of elements necessary for the human body, such as amino acids and various minerals. Therefore, they must be included in the daily diet.

benefits and harms of boiled eggs

Egg whites at night for weight loss

Egg white contains a protein that is involved in the production of the hormone of joy and growth. These hormones support cell renewal processes, tone muscles and improve mood.

Experts do not recommend consuming raw protein at night, since its absorption takes a relatively long time. Moreover, in this case it will not become a stimulator of fat burning processes. Before going to bed, you should eat boiled protein to lose weight. When choosing the serving size of a product, you need to take into account factors such as health status and body weight. Here are some tips on this:

  1. Eat 2 boiled proteins before bed. This is suitable for people whose body weight ranges from 78–82 kg. The course lasts 7 days, after which a month-long break and repetition is required.
  2. 1 boiled protein - if you weigh less than 78 kg for a week.
  3. 1 boiled protein and kefir. A couple of hours before bedtime, you need to consume protein and low-fat kefir (1 glass). The course lasts from 7 days.
  4. Protein omelette. For 7 days before going to bed, eat an omelet (2 egg whites).

In addition to its direct effect on the weight loss process, protein also has beneficial properties that support the body during weight loss. Egg whites fill the body with essential substances that support its proper functioning.

Recommendations to follow:

  • Drink enough water per day (about 2 liters).
  • Organize proper nutrition (healthy food and portion sizes).
  • Do not eat high-calorie foods.

After finishing a protein diet, you should not suddenly switch from low-calorie foods to high-calorie foods; a gradual change in diet will help to better consolidate the results.

The processes that stimulate fat deposits are actively launched in the evening, and since egg white can prevent this, you should eat it in the evening. To enhance the effect, you can also include citrus fruits in your diet. An important condition is the need to monitor your health status, since if your health worsens or if any side effects occur, the diet must be stopped. If symptoms do not go away after quitting protein, you should consult your doctor.

Video:

why egg white is ideal for muscle growth Expand

Benefits of egg white

Let's look at what is contained in chicken eggs and how they benefit us.

  1. Protein has a beneficial effect on the body, cleansing it. Scientific studies have shown that regular consumption of egg whites leads to a significant reduction in the amount of bad cholesterol in the blood, which causes serious heart and vascular diseases. Therefore, proteins are very useful for the prevention of these diseases.
  2. The advantage of protein is not only its low calorie content, but also its high protein content. This enzyme is necessary for the successful production of energy in the body's cells.
  3. In addition, it contains almost all amino acids, which play a decisive role in many processes occurring in the body. This includes mental activity of the brain, cell restoration, and improvement in the condition of connective tissue.
  4. Egg whites contain B complex vitamins, as well as vitamins E and D.

What can you make from egg whites?

Egg white is used quite widely in the field of cooking. Without his participation, it will not be possible to prepare either meringue or biscuit dough. Whipped egg whites must be present when preparing soufflés and jelly. In addition, protein can be boiled, fried and baked.

What can you replace egg white with?

An excellent substitute for eggs can be fruits - bananas, apples and other fruits that contain pectin. You can make puree from them. Tofu can replace eggs in some cases. In addition, they can be replaced with a mixture of flaxseeds and water brought to a homogeneous state. To replace egg whites, a mixture of agar-agar (powder) and water or oil is sometimes used. In baking, yogurt is sometimes used instead of eggs.

Egg white in cosmetology

This product is useful not only when eaten. External use can also bring many benefits. Cosmetologists advise using it to care for oily skin.

. It helps dry it out and normalizes the functioning of the sebaceous glands. It is also perfect for combination skin.

A mask made from this component is very easy to prepare and is suitable for frequent use. To prepare such a mask, you just need to thoroughly beat the egg white and cool it

.
This mask is applied in three layers
.
First, apply the first one using a brush, which should dry a little. The second and third layers are applied in the same way
. The product should be washed off with warm water after 15 minutes.

Chicken egg white is also often used in hair care. To speed up hair growth and provide intensive nutrition, you can prepare such a simple mask

.
Take 3 tablespoons of yogurt or other fermented milk product, combine with the white of one chicken egg
.
The product is applied to the hair for 25 minutes, distributing it over the entire length
. Women who use this recipe regularly claim that their hair becomes silky and its structure is significantly improved. This method is not only effective, but also accessible to every woman who wants to maintain her beauty without special expenses or visiting salons.

fried eggs - benefits and harms

Can egg whites be harmful?

Many people believe that eating eggs and egg dishes every day can be harmful. The only justifiable concern about this is the cholesterol content. But this element is found only in the yolk of the egg.

.
There is practically no protein in it
.
If there are about 250 mg of cholesterol per 100 g of yolk, then in the protein its amount approaches zero
. If you tend to be overweight and have high cholesterol levels in your blood, then to prevent the formation of plaques on your blood vessels, it is enough to exclude the yolk from your diet. You don't have to give up eggs completely.

If your body does not tolerate protein, then you should also avoid eating eggs. This is practically the only harm that this valuable product can cause. Allergy to yolk is much less common

.
If a person is allergic to protein, then most likely he will not be able to tolerate chicken meat either
. This relationship is observed in 60% of cases.

If you suffer from this allergy, don't forget that they are present in many dishes. These include baked goods, salads, and some confectionery products.

how many eggs can adults and children eat per day?

Which is better, white or yolk: heat treatment rules

All the beneficial substances contained in the yolk are preserved only if it is fresh. That is, raw. However, in most cases, people cook, fry, and boil eggs.

How to preserve the benefits of eggs? To do this, it is necessary to resort to certain methods of heat treatment. It is best if the white is boiled and the yolk is liquid and fresh. Therefore, the ideal option would be to prepare fried eggs or poached eggs.

Which is better, white or yolk, does not matter if you boil eggs soft-boiled or in a bag. This way, you will be able to boil the white, but the yolk will remain liquid. This will help preserve the beneficial properties, vitamins, minerals, and fatty acids found in the yolk.

Homemade eggs
Homemade eggs

It is best to eat a balanced diet and limit the consumption of fat and smoked foods. It is this food that becomes a source of bad cholesterol.

How to use

  1. Egg white is considered the most popular in cooking.
  2. Due to the list of beneficial properties, this product can be consumed raw. This is done on an empty stomach
    . In this case, the protein coats the walls of the stomach and promotes the healing of ulcers.
  3. In addition, the protein is actively boiled and fried. This dish is common in many families as one of the possible options for a quick breakfast.
  4. Proteins are often used for preparing second courses, and less often for first courses. Not very long ago, the fashion came from Transcaucasia to prepare soups using these products.
  5. Used as a base for creams and baking dough.

Advice! In order for the whites to whip better into foam, they need to be cooled. It will also help if you add a pinch of salt to the bowl.

Conditions and shelf life of egg whites

Raw egg whites should be stored in an airtight container in the refrigerator. Shelf life – no more than 5 days.

Is it possible to freeze

Proteins can also be stored frozen. To do this, you can use a tray with ice, placing one egg white (2 tbsp) in each cell. After hardening, you need to transfer the cubes into a tight sealed plastic bag. When defrosting, leave the product in the refrigerator for 8–12 hours (overnight), while placing it in a bowl filled with cool water.

Compound

Egg white consists of 90% water and 10% protein. The consistency looks like a transparent creamy thick liquid

. Since protein tends to coagulate when heated, during cooking the product becomes white and dense.

Egg white contains many vitamins and minerals. First of all, these are useful enzymes, glucose and B vitamins. The presence of niacin, choline and vitamin K makes this product an indispensable component of nutrition.

Regular consumption

Important! All the stories about how egg white negatively affects cholesterol levels in the blood and how it leads to various diseases are a myth. Protein raises the amount of healthy cholesterol. It is the egg yolk that causes the most harm.

In fact, regular consumption of egg whites not only does no harm, but also brings great benefits to the human body.

This conclusion was made by researchers at the University of Cambridge. Scientists believe that protein can have a beneficial effect on metabolism and health.

. But for the best effect, it should be eaten boiled.

Protein

What do you like better, white or yolk? Many people believe that it is better to separate one part from another. Supposedly this way they can take better care of their cholesterol levels. There is an opinion that the protein is the most useful part of the egg.

Let's see what its advantages are :

  • Egg whites contain no fat . It is low in calories, which makes it a dietary and healthy product. The risk arises when we cook scrambled eggs. After all, the oil we use for frying contains fat that is dangerous to our health.
  • Protein is rich in B vitamins.
  • Whites contain fewer calories than yolks.
  • They tend to be very good for weight loss diets. Many people eat only egg whites for breakfast because they contain proteins, vitamins, and are also quite nutritious. We, in turn, do not recommend that you limit your breakfast to protein alone. It will be better if you supplement it with other products: a portion of oatmeal , a fruit cocktail, etc.
  • Egg whites are also used for cosmetic purposes : it is an excellent natural remedy for increasing skin elasticity. Protein softens the skin and reduces irritation.
  • Finally, egg whites contain a special type of peptide that can help lower blood pressure.
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