An overview of 18 kinds of amino acids and their efficacy (part II)

  1. Isoleucine(ILE)

(1). It can maintain the body balance, treat mental disorders

(2). Increase appetite and anti-anemia

(3). Present physical exhaustion, coma and other symptoms when lacking

  1. Tryptophan (TRY)

(1). Promote the synthesis of hemoglobin

(2). Prevent ecdysis

(3). Promote growth, increase appetite

(4). Its sweetness is 35 times that of sugar, which is good for the production of low-sugar foods for diabetics and obese patients.

  1. Cystine(CYS)

(1). Treatment of fatty liver and detoxification

(2). Treatment of skin damage, and effective for postpartum hair loss

  1. Lysine (LYB)

(1). Participate in the formation of connective tissue and microvascular epithelial interstitial cells and maintain normal permeability.

(2). Increase appetite, promote the secretion of pepsin, enhance immunity, improve developmental delay, prevent tooth decay, and promote child growth

(3). Improve calcium absorption and promote bone growth

(4). if it is lacking, it will reduce the sensitivity of people, for example, women will stop menstruation, anemia, dizziness, dizziness and nausea

  1. Aspartic acid(ASP)

(1). Reduce blood ammonia, have a protective effect on the liver

(2). Has a protective effect on the muscles, can treat angina pectoris, and has a preventive effect on myocardial infarction, etc.

(3). Increase umami, promote appetite

  1. Proline (VAL)

It can promote normal nervous system function.

  1. Phenylalanine (PHE)

It transfers into tyrosine in the body and promotes the synthesis of thyroxine and adrenaline.

  1. Proline (PRO)

It has been effective for hypertension.

  1. 16. Serine(SER)

(1). Reduce blood cholesterol levels, prevent and treat high blood pressure

(2). It is a component of serine phospholipids in tissues such as the brain.

(3). It has an effect on tuberculosis bacterial disease, can treat lung disease

  1. Glutamate (GLU)

(1). Reduce blood ammonia

(2). Participate in brain protein and sugar metabolism, promote oxidation, improve central nervous activity, maintain and promote brain cell function, and promote intellectual development

(3). Have therapeutic effects for severe liver dysfunction, hepatic coma, acidosis, epilepsy schizophrenia, neurasthenia, etc.

(4). Have therapeutic effects for the treatment of gastric ulcer, lack of gastric juice, indigestion, loss of appetite

(5). Protect the skin moist, prevent dry cracks, such as the preparation of detergents, cosmetics, skin and mucous membrane stimulation, suitable for children and skin patients

  1. 18. Arginine (ARG)

(1). Reduce blood ammonia, promote urea production in the body, and treat hepatic coma, etc.

(2). Increase muscle vitality, maintain sexual function, and have a role in the treatment of sperm reduction

Supplemental amino acids are part of our healthy diets and should not be ignored.

Amino acids are used for a variety of applications in industry, but their main use is as additives to animal feed. This is necessary, since many of the bulk components of these feeds, such as soybeans, either have low levels or lack some of the essential amino acids: lysine, methionine, threonine, and tryptophan are most important in the production of these feeds. In this industry, amino acids are also used to chelate metal cations in order to improve the absorption of minerals from supplements, which may be required to improve the health or production of these animals.

The food industry is also a major consumer of amino acids, in particular, glutamic acid, which is used as a flavor enhancer, and aspartame (aspartyl-phenylalanine-1-methyl ester) as a low-calorie artificial sweetener. Similar technology to that used for animal nutrition is employed in the human nutrition industry to alleviate symptoms of mineral deficiencies, such as anemia, by improving mineral absorption and reducing negative side effects from inorganic mineral supplementation.

The chelating ability of amino acids has been used in fertilizers for agriculture to facilitate the delivery of minerals to plants in order to correct mineral deficiencies, such as iron chlorosis. These fertilizers are also used to prevent deficiencies from occurring and improving the overall health of the plants. The remaining production of amino acids is used in the synthesis of drugs and cosmetics.

Similarly, some amino acids derivatives are used in pharmaceutical industry. They include 5-HTP (5-hydroxytryptophan) used for experimental treatment of depression, L-DOPA (L-dihydroxyphenylalanine) for Parkinson’s treatment, and eflornithine drug that inhibits ornithine decarboxylase and used in the treatment of sleeping sickness.


  1. Blenis J, Resh MD (December 1993). “Subcellular localization specified by protein acylation and phosphorylation”. Current Opinion in Cell Biology. 5 (6): 984–9.
  2. Proline is an exception to this general formula. It lacks the NH2 group because of the cyclization of the side chain and is known as an imino acid; it falls under the category of special structured amino acids.
  3. Blaser HU (1992). “The chiral pool as a source of enantioselective catalysts and auxiliaries”. Chemical Reviews. 92 (5): 935–52. doi:10.1021/cr00013a009.
  4. “amino acid”. Cambridge Dictionaries Online. Cambridge University Press. 2015. Retrieved 3 July 2015.
  5. Petroff OA (December 2002). “GABA and glutamate in the human brain”. The Neuroscientist. 8 (6): 562–73. doi:10.1177/1073858402238515. PMID 12467378.