What are the amino acids and the main food sources they provide to the body?

The human body is unable to make essential or essential amino acids and they must be supplied through the food system in the correct amounts and proportions to meet the need required for the process of tissue growth and maintenance. are those that the body can produce in sufficient quantities to meet its needs as the total amount of nitrogen that supplies it with sufficient protein.

9 amino acids are required to maintain nitrogen balance in the human body, and children and infants have a greater need for essential amino acids than adults, in addition to the need for histidine as an essential amino acid.

In addition to factors such as age, gender and physical condition, there are other factors that influence the degree of need for certain amino acids. If total protein intake is low, small increases in certain amino acids can increase the need for other acids.

The non-essential acids in proteins also affect the level of protein quality. For example, the need for sulfur, which contains the essential amino acid represented by methionine, can be reduced if cysteine, a non-essential amino acid containing sulfur, is added. In contrast, the presence of tyrosine in Diet, an essential amino acid that is similar in structure to with phenylalanine, reduce the need for phenylalanine.

The most important amino acids


Of all the essential amino acids, tryptophan has been the most studied and researched by nutritionists because it is essential for blood clotting, the digestion of juices and the visual system. It induces sleep and calms the nervous system. It removes the signs of cataracts in the eyes during aging and prevents baldness, blurring of the gonads and deformation of tooth enamel. It is also essential for the female reproductive system and for the proper use of vitamin A by the body.

The main sources of this amino acid are nuts and most vegetables, and a deficiency of tryptophan causes symptoms similar to a vitamin A deficiency. Some scientists claim that it can be used as a safe and effective nutritional treatment for insomnia and pain, and while tryptophan is used as a nutritional medicine, it should be in between low-protein meals such as fruit juice or bread.


It is a sulfur-containing bio-compound, which helps to dissolve cholesterol and absorb fats. It is required by hemoglobin, pancreas, lung and spleen and is essential for maintaining normal body weight and helping maintain a healthy nitrogen balance in the body.

Rich sources of methionine include Brazil nuts, hazelnuts and other nuts. It can also be found in cabbage, cauliflower, pineapple and apples. Deficiency of this element can lead to chronic rheumatic diseases in children, liver cirrhosis and kidney inflammation. Studies show that methionine and chlorine prevent the formation and growth of tumors.

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Lysine suppresses and inhibits viruses, and intake with vitamin C, zinc and vitamin A helps eliminate viral infections. Vitamin C protects this amino acid while it is in the body, so lysine and vitamin C together have a stronger effect on viruses than alone. Lysine also affects the female reproductive cycle and a deficiency in the amount of lysine in the diet can cause headaches, dizziness, nausea and primary anemia.

The main sources of this amino acid are most types of nuts, seeds, vegetables and fruits that are slightly acidic. Fluctuations in the level of lysine in the body have been linked to pneumonia, kidney failure, acidosis, malnutrition and shivering in children. Lysine is a natural remedy for colds, abscesses, gallstones and impetigo.


It is an essential factor for the growth of the body, especially for the mammary glands and ovaries. Valine is directly related to the nervous system. It is essential in the prevention of nervous and digestive disorders. The main sources are almonds, apples and most vegetables. Deficiency of this amino acid makes a person very sensitive to touch and hearing sounds.


This amino acid is essential for maintaining nitrogen balance, which is essential for all bodily functions, and also modulates the metabolism of the thymus, spleen and pituitary gland. The main sources are sunflower seeds, all nuts except cashews. There are also avocados and olives.


It is very similar to isoleucine, having a similar chemical structure but a different arrangement, its function and sources are also identical to isoleucine.


It is necessary for the production of the hormone adrenaline, the production of thyroid secretions and hair and skin pigment, melanin, and it is also effective in weight management due to its thyroid effect, its use before meals greatly suppresses appetite. People who take half a teaspoon of this powder 30 minutes before a meal will lose between a quarter and a half pound per day. It is also beneficial for the integrated functioning of the kidneys and bladder.

The main sources of this amino acid are nuts, seeds, carrots, parsley and tomatoes. Recent studies have revealed the therapeutic use of phenylalanine, which is its ability to eliminate states of lethargy by stimulating the hormone adrenaline.

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This amino acid is found in different types of milk and is an essential component of cow’s milk. Other sources of it are nuts, seeds, carrots, green vegetables. Without threonine, the child’s development will not be complete and the brain will not function properly. This amino acid has a powerful anti-stress and anti-stress effect.


It aids tissue growth and repair, and it is effective in producing a normal blood supply. It is also a vital factor for the formation of glycogen in the liver and can be found in root vegetables and green vegetables.

Studies have shown that the independent form of histidine in the blood is low in cases of rheumatoid arthritis, and if taken orally, it can suppress the symptoms of this disease. Oral administration of histidine stimulates the secretion of hydrochloric acid in the stomach. Therefore, acid-sensitive individuals and those with stomach ulcers should avoid pure histidine. The cause of pain in the bones and joints is due to a deficiency or absence of histidine.


They call it the “paternal” amino acid because it contains 80% of male reproductive cells and it is essential for normal growth. A severe deficiency of this amino acid reduces the effect of libido, causing impotence. It is found in most vegetables, especially green and rooted ones.


It provides resistance by mirroring the activities of white blood cells and is considered an essential amino acid. It is considered one of the basic components of health, as it is necessary for the formation of the skin in a calm manner and thus aids a rapid recovery from surgical procedures. It aids in the formation of carotene, which in turn aids in hair growth. This amino acid is used to treat skin diseases, low white blood cells and some cases of anemia.

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It may be called the anti-fatigue amino acid. Doctors who have tested this amino acid say, “..supplemented with tyrosine may be therapeutically beneficial for people who are constantly exposed to fatigue and stress.”

Tyrosine is also beneficial for frustration, nervousness, irritability, and despair, and studies have shown this amino acid to be effective at controlling and controlling frustration as it interacts with glutamine, tryptophan, niacin, and vitamin B6. It is also helpful in treating allergies and high blood pressure.


Known as the fasting nutrient, this little-known amino acid is considered helpful in treating alcoholism. According to some physicians (such as Dr. Roger Williams, a world-renowned nutritionist), glutamine reduces the intensity of alcohol cravings, a condition that addicts suffer during their addiction treatment.


There is some evidence that cysteine ​​(not cysteine) has therapeutic value as a dietary supplement. Some doctors, such as Dr. “H. Ghademi, of the New York Medical Center, recommends cysteine ​​supplements to treat obese patients. They believe there is a link between obesity and excess insulin production, and that taking cysteine ​​supplements with vitamin C at the end of a meal alters the effect of some of the excess insulin responsible for fat production. They also consider this amino acid to be anti-cancer and anti-aging, claiming that, like vitamin C, cysteine ​​protects the body from oxidative damage.

When one or a group of essential amino acids is missing from the diet, symptoms similar to those caused by a vitamin deficiency will appear, such as low blood pressure, anemia, poor muscle tone, slow wound healing, weight loss, poor resistance to infections, blockage of blood in the eyes.

Children who do not get enough amino acids in their daily meals suffer from stunted growth and permanent damage to the glands, and on the other hand, those who eat enough amino acids will enjoy vigor, vigor, vitality and longevity.

The best dietary proteins containing all the essential amino acids are found in almonds, cheese and eggs, and amino acids are used with remarkable increase and successfully in the treatment of various diseases such as stomach ulcers, burns, kidney diseases and liver diseases.

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