What does protein give? Key functions in the body

Protein building material for our body - this is how you can determine the role of proteins, which are considered the most important diet macronutrient for a reason. Although we often associate them primarily with muscle structure and regeneration, the influence of proteins reaches much further, covering almost every important physiological process. Protein is not only a portion of strength For an athlete or a way to quickly increase muscle mass, but also a key element of the immune system, hormone production, transport of vitamins and minerals, and even maintaining water and electrolyte balance.

Thanks to their diverse composition of amino acids, proteins fulfill the function of cell scaffolding - from muscle tissues, through skin structures, to enzymes and neurotransmitters controlling our mood and metabolism. Without proper supply of full -fledged protein, the body is not able to keep up with constant tissue trade, regenerate damage resulting from daily effort, or effectively defend against pathogens.

In this article, we will look at four key areas in which the protein plays an irreplaceable role: the importance of tissue structure and regeneration, support of the immune system, impact on the production of hormones and enzymes and transport function. Thanks to this, you will understand why a protein -rich diet can translate not only to a better figure, but also to the health of the whole body.

The role of protein under construction and regeneration

Every day, our body makes a real "recycling" of tissues - even during a quiet sleep, muscle, skin or internal organs break down during a quiet sleep. Without constant delivery of amino acids from food, the body is not able to rebuild the resulting cavities, which in the long run may result in muscle weakness, loss of muscle mass (sarcopenia), and even reduced bone density.

Proteins play the role of basic building material - It is from them that myofibrils are formed responsible for muscle spasm, collagen ensuring skin firmness, elastin that gives elasticity to blood vessels and cell membranes. In the process of regeneration after physical effort, the protein stimulates the synthesis of new muscle fibers, which translates into the increase in strength and muscle mass. In athletes and physically active people, protein intake (1.4-2.0 g per kg of body weight) allows you to reduce the regeneration time and minimize the risk of injury.

For convalescent or elderly people, when the natural ability to synthesize proteins decreases, the right amount and quality of protein consumed becomes priority. Studies show that older adults need up to 20-30 % more protein than younger people to maintain muscle mass and prevent the loss of physical functions. It is worth reaching for full -fledged sources - dairy products, lean meat, eggs or supplements like a full -fledged powder meal that provide a set of amino acids in optimal proportions.

Protein and immunity

Our immunity is not based solely on the cells of the immune system; A strong defense system is a complex mechanism in which proteins play a key role at every stage - from the recognition of pathogens, through the production of antibodies, to the removal of cells damaged by microorganisms. Immunoglobulins, i.e. antibodies, are protein structures capable of specific antigen binding, which enables neutralization of viruses and bacteria. Without sufficient supply of amino acids, the body cannot effectively synthesize these necessary molecules.

Also, macrophages and neutrophils - need protein for the production of enzymes that "devour" and digest pathogens. In the states of chronic protein deficiency, the weakening of the immune response, extending wound healing time and increased susceptibility to infections are observed. Therefore, during periods of increased incidence, recovery after illness or steroid therapy, it is even more worth taking care of a high -protein menu, supplemented with powder products, such as a full -fledged Smart Meal meal.

Protein influence on hormones and enzymes

Hormones, neurotransmitters and enzymes regulating basic life processes are mostly protein molecules or amino acid derivatives. Insulin or glucagon - two key hormones for carbohydrate metabolism - are strictly dependent on the availability of individual amino acids to their synthesis. Similarly, serotonin and dopamine, affecting mood and motivation, arise from tryptophan and tyrosine, which we need to provide with a diet.

Digestive enzymes, liver or mitochondrial take part in the transformation of nutrients into energy and toxins neutralizing. Their activity depends on both the amount and quality of the protein consumed. Amino acid deficiency can stop the activity of enzymes, leading to worse use of fats and carbohydrates, and as a result to feeling fatigue and a decrease in physical performance.

Protein in the transport of the substance

In plasma and cell membranes, proteins act as transporters - they bind and move the necessary compounds such as iron, vitamins or hormones. Transfer, protein transmitting iron, and albumin, which maintains osmotic pressure and transports fatty acids and drugs, these are examples of key molecules, without which the proper functioning of the body would be impossible.

Transport of thyroid, cortisol or estrogens hormones is also based on carrier proteins. When the level of protein in the blood decreases - e.g. with malnutrition or liver diseases - the body's ability to maintain a stable level of hormones and microelements can be disturbed. This, in turn, affects detoxification, drug metabolism and many other processes necessary to maintain health.

Sources

• Harvard T.H. Chan School of Public Health - The Nutrition Source: Protein
• Institute of Medicine (US) - Dietary Reference Intakes for Macronutrients
• World Health Organization - Protein and Amino Acid Requirements in Human Nutrition
• National Institutes of Health (Nih) - Office of Dietary Supplements: Protein
• United States Department of Agriculture (USDA) - Fooddata Central
• European Food Safety Authority (EFSA) - Scientific Opinion on Protein and Amino Acid Requirents
• Journal of the International Society of Sports Nutrition: "Protein Timing and Its Efists on Muscle Strength and Hyperrophy"

FAQ

How does protein affect the feeling of satiety and body weight control?

Protein has the highest thermal effect of macronutrients - during digestion it consumes more energy, which promotes weight reduction. In addition, it slows down the gastric emptying, and the amino acids stimulate the secretion of satiety hormones (Peptide YY, GLP-1), which helps reduce appetite and prevents snacking between meals.

How does the protein support the health of the skin, hair and nails?

Structural proteins, such as collagen and keratin, are the basis of the connective tissue of the skin, hair and nails. By providing amino acids (mainly glycine, prol and hydroxyprol), we contribute to the reconstruction and maintenance of skin elasticity as well as the strength of nails and hair bulbs.

Can protein accelerate metabolism and fat burning?

Yes. The high -protein diet increases postprandial thermogenesis and contributes to fat loss, while protecting muscle mass. As a result, resting metabolism remains higher, which facilitates long -term weight control.

How does the protein participate in maintaining the acid-base balance of the body?

Proteins play the role of blood buffers - hemoglobin and albumin bind excess hydrogen ions, preventing pH changes. Thanks to this, cells and enzymes can function in the optimal environment, and metabolic processes run properly.

Do different sources of protein affect the bioavailability of other microelements?

Yes. Animal proteins are often rich in iron and zinc, which are characterized by high absorption. In turn, plant proteins may contain absorption inhibitors (e.g. phytate), so it is worth combining them with products rich in vitamin C, which increases the bioavailability of iron.