What is protein deficiency? Protein is the nutrition needed by human body, the essential substance for normal physiological activities, the important nutrient for keeping human health and the foundation of all substances. So what's the performance without protein?

What is protein deficiency? 1 I especially want to eat sweet or salty food.

Protein can slow down the rate of sugar entering the blood and help to keep blood sugar stable. If the human body lacks protein, sugar will quickly enter the blood, triggering the regulation function of insulin, leading to a drop in blood sugar, and people will have a desire for sweets or salty food.

Feel dizzy and depressed

Neurotransmitters such as dopamine and serotonin need protein. Once protein is lacking, it will easily lead to trance, dizziness, confusion and depression.

decreased immunity

The immune cells of human body are composed of protein. If there is not enough protein, the function of the immune system will deteriorate, and it is difficult to quickly repair and resist the invasion of foreign bacteria or viruses, and the human immunity will decline, and the body will naturally get sick.

Dull skin

Collagen can keep skin young and elastic. Collagen is also a kind of protein. Without protein, the skin would be dull and rough.

Easy to lose hair

Protein also includes keratin, which is the basic substance of hair. Lack of protein will affect the firmness of hair, thus causing hair loss.

In a word, protein is an essential substance for normal physiological activities, and adequate protein is conducive to maintaining health. Lack of protein, the impact on the body should not be underestimated.

What harm will the lack of protein do to your health?

First of all, the lack of protein can easily lead to stunting. Long-term insufficient intake of protein will affect the synthesis of tissue protein. For children and adolescents, the lack of protein will lead to stunting, which will lead to substandard height and weight, and even affect intellectual development. For adults, lack of protein can lead to malnutrition symptoms, such as decreased plasma albumin, muscle atrophy and anemia.

Secondly, lack of protein is prone to hypoproteinemia, which increases the risk of heart failure or death. The liver is an important organ for synthesizing protein in plasma. If the lack of protein in human body leads to the decrease of protein level in blood, it is easy to suffer from hypoproteinemia. For patients with liver disease and diabetes, hypoproteinemia is easy to aggravate the condition.

Finally, when the intake of protein is insufficient for a long time, it is easy to gradually form nutritional edema, and even lead to death in severe cases. When protein is lacking in the body, protein in the tissue decomposes quickly and synthesizes slowly, and a series of pathological changes will occur, such as intestinal mucosa, digestive gland and liver. When there are symptoms such as diarrhea, indigestion, plasma protein synthesis disorder, muscle atrophy, etc., if we do not pay attention to it, it will continue to develop into nutritional edema.

In addition, for the elderly, the lack of protein will easily lead to "sarcopenia", which will further aggravate the illness and affect the life span of the elderly. At the 70th annual meeting of the American Neurological Society, a new study was presented, and it was found that the tears of patients with Parkinson's disease were slightly different from those of ordinary people at some protein level.

It can be seen that the shortage of protein is very harmful, but it does not mean that the more protein, the better, and the excessive protein is also harmful.

What harm does protein overdose have to the body?

Excessive protein will do harm to the kidney, because excessive protein will increase the glomerular filtration rate, increase the burden of renal acid metabolism, and then increase the risk of kidney calculi. After a lot of research, scientists found that excessive protein will also increase urinary calcium excretion and increase the risk of bone loss.

How much protein does the human body need? British nutritionist Simpkin said that protein's consumption should be 0, 8 grams per kilogram of body weight, and protein's demand is related to personal lifestyle, age, activity level and health status.

Extension: When it comes to supplementary food in protein, many people will think of a common food, that is, eggs. How many eggs is appropriate to eat every day? Remember seven "don't" s when eating eggs.

According to the recommendation of Dietary Guidelines for China Residents (20 16), you should not eat more than seven eggs per week on the premise of ensuring adequate intake of protein. Don't worry too much about eating eggs; Don't throw away the yolk; Don't be superstitious about earth eggs; Never mind the color of the eggshell; Don't eat eggs raw; Don't believe that eggs and soy milk are grams; Don't ignore egg allergy.

In short, we should pay attention to protein's intake in the usual diet, and the diet should be balanced to avoid the lack or surplus of protein.

What are the manifestations of protein's lack? 2 1, muscle relaxation. When our bodies consume too little protein, it takes longer for our bodies to repair damaged muscles, tissues and joints. At this time, the tension of our muscles will be weakened, and the support ability of our joints will also decrease.

2, a lot of hair loss. Because our skin, nails and hair are all made of protein, when our body lacks protein, the human body cannot effectively regenerate cells, and the tissues made of protein in the body will gradually start to weaken.

3. the immunity is getting worse. When protein in our body is extremely deficient, our immune cells can't reproduce or repair other damaged cells quickly, so our resistance to external bacteria will decrease.

4. The quality of sleep is getting worse. Protein contains tryptophan, which helps to promote sleep, so when the human body lacks protein, we can't have a good sleep quality.

5, easy to fatigue. As we all know, hemoglobin is the protein that transports oxygen to various tissues and organs of our body. If we lack hemoglobin in our blood, our ability to obtain oxygen will decrease. If we don't get enough oxygen, we will easily get sleepy.

Why take enough protein?

Because getting enough protein is very important for health, the recommended daily intake (RDI) in protein is 50g per day. A large intake of protein is helpful to lose weight, increase muscle mass and improve health.

What is the lack of protein? 3 1. Do you feel weak?

Muscle weakness is also protein's lack. When you don't have enough protein, your muscles will gradually weaken and lose energy. Without muscles, the body's metabolism will slow down.

It is difficult for you to lose weight.

If you want to lose weight by reducing calories or protein, it may backfire, because you have reduced the number of muscles. If you want to try to lose weight, you should eat more protein. If you eat more protein, you will consume less calories and feel full for a long time. Besides, what you lose is fat, not muscle.

You are often ill.

Protein is very important to the immune system. When you eat enough protein, your body needs to use T cells to fight viruses, especially colds and flu. Lack of protein will make you more likely to get sick. And it will take longer to recover.

Your hair is very fragile.

Protein is not only important for muscle growth. At the same time, it is an integral part of the protective layer of cells, including hair, skin and nails. In order to conserve energy and store protein, your body will reduce the content of protein in your hair, so your hair will fall off or become thinner.

Your skin is dry and sensitive.

Another obvious sign of protein's lack is skin and nails. Rough skin on thighs or buttocks is the lack of protection on the skin surface, which makes your skin more susceptible to infection.

6. You have a little edema.

When you don't get enough protein, your lower body will get edema-legs, ankles and feet. This edema is caused by the fluid that should be in the blood vessels and comes to the surrounding tissues. You can test this way: press the place with your hand and see if there will be white marks after you let go of your hand.

7. You are always hungry

There are many reasons for hunger, which may be dehydration or lack of protein in diet. If you find that you are always hungry, or you need to eat snacks between meals, it may be that your body is telling you that it needs more protein. Protein can balance your blood sugar until the next meal.

8. You like sweets very much.

If you are not only hungry, but also like sweets, you may need more protein. Because protein can regulate blood sugar and glucose levels, lack of protein will make you want to eat sweet things. If you eat protein at every meal, your blood sugar level will not fluctuate and you won't want to eat sweet things.

9. You are very tired

If you don't get enough sleep or work, do housework or exercise too much, you will also feel tired. However, if you feel tired at noon, it may be a matter of blood sugar and protein level. Don't take a nap, eat something high in protein to provide you with energy.

10, your attention is easily distracted.

When your protein level is not enough, your brain will be distracted. Protein can balance blood sugar and help you stay focused. Don't rely on carbohydrates or desserts to stay focused. Instead, eat more protein every meal to keep the body and brain working clearly.