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Amino Acids

Every amino acid molecule contains at least one amino group (-NH2) and carboxyl group (-COOH) (glycine and taurine are exceptions; taurine carries a sulfonic acid group instead of a carboxyl group). Amino acids are in either an "L" or "D" configuration, the difference determined by which side of the molecule the amino group (-NH2) is attached. In protein, all amino acid configurations are of the "L" configuration, "D" configurations. Although a small portion of ingested "D" form amino acids can be rearranged, to form "L" configurations, most "D" configured amino acids are unavailable for peptide and protein synthesis and may even inhibit enzymes. For this reason, D-configured amino acids should not be consumed. An exception in this case might be DL-phenylalanine (DLPA).

Function- Amino acids are the essential raw materials in the growth, repair and/or reproduction of every cell of your body. There are approximately twenty-eight commonly known amino acids that are combined in various ways to create the thousands of different types of proteins present in all living things. These “building blocks” of life are what makes protein. There are only a few forms of fat, and a few forms of carbohydrates but there are at least fifty thousand recognized forms of protein. All of these protein structures are made from a specific sequence of amino acids. The proteins that make up the human body are not obtained directly from the diet. Rather, dietary protein is broken down into its constituent amino acids, which the body then uses to build the specific proteins it needs. Thus, it is the amino acids rather than protein that are the essential nutrients.

Amino acids are necessary in the manufacturing of neurotransmitters. The commonly known neurotransmitters are divided in classes and are identified as;

Class 1: Acetylcholine

Class 2: (Amines) Norepinephrine
Epinephrine
Dopamine
Serotonin
Histamine

Class 3: (Amino Acids) GABA (Aminobutyric acid
Glycine
Glutamate
Aspartate

Class 4: Nitric Oxide

The nervous system is one of the main communication pathways in the body and neurotransmitters literally make up the metabolism of the nervous system. Neurotransmitters are the chemical messengers that carry information from one nerve cell to another. Certain amino acids are necessary for the brain to receive and send messages. Unlike many other substances, neurotransmitters are able to pass through the blood-brain barrier. The blood brain barrier is a defensive shield designed to protect the brain from toxins and foreign invaders that may be circulating in the bloodstream. Traditional medicine and pharmaceutical companies spends millions and millions of dollars trying to get invasive drugs to pass through this safety barrier to effect neurotransmitters and other brain function with little success. Nature, however, gladly accepts and allows the life enhancing amino acids through this barrier. The endothelial cells that make up the walls of the capillaries in the brain are much more tightly meshed together than are those of capillaries elsewhere in the body. This prevents many substances, especially water-based substances, drugs, and invasive organisms from diffusing through the capillary walls into brain tissue. Certain amino acids can pass through this barrier and can be used by the brain to communicate with nerve cells elsewhere in the body.

Amino acids also enable vitamins and minerals to perform their jobs properly. Even if vitamins and minerals are absorbed and assimilated by the body, they cannot be effective unless the necessary amino acids are present.

Deficiency- Many factors can contribute to deficiencies of essential amino acids, even if you eat a well-balanced diet that contains enough protein. Impaired absorption, infection, trauma, stress, drug use, age, and imbalances of other nutrients can all affect the availability of essential amino acids in the body. Insufficient intake of vitamins and minerals, especially vitamin C and B6 can interfere with the absorption of amino acids in the lower part of the small intestines. If your diet is not properly balanced, with adequate amounts of the essential amino acids, this will become apparent as some type of imbalance or disease.

Amino acid deficiency is related to allergies, hormone imbalances, mood swings, inflammatory diseases, arthritis, blood sugar swings, angina, asthma, chronic fatigue, cardiovascular disease, low immune system, digestive disturbances, crohn’s disease, irritable bowel syndrome, insomnia, ulcerative colitis, PMS, headaches, recurring subluxations, depression, diabetes, migraines, fainting, impotence, enzyme depletion, predisposition to various degenerative disorders, gastrointestinal dysfunction, auto immune disorders, neurological disorders, impairments in detoxification and inborn errors of metabolism involved at the DNA level. Other common conditions are ADD, ADHD, epileptic seizures, leaky gut syndrome, any skin condition, hives, eczema, psoriasis, dermatitis, rashes, fibromyalgia, syndrome X, aches and pains, chronic sickness, rhinitis, fluid retention, loss of energy, indigestion, gas and bloating, anxiety, panic attacks, irregular heartbeat, constipation, diarrhea, multiple sclerosis, learning disability, ear and sinus infections, nervous tension, nausea and more.

Amino acid profiles (lab tests) are available and can be performed using urine or blood. These tests are very non-invasive and accurate to detect these imbalances. Even athletes that take in a high level of protein can be very deficient in amino acids and cause a significant decrease in performance, health and well-being and accurately provide treatment programs.

Sources- In the human body, the liver produces about 80 percent of the amino acids needed. The remaining 20 percent must be obtained from outside sources in the diet and are called the essential amino acids. The essential amino acids that must enter the body through diet are phenylalanine, histidine, tryptophan, isoleucine, leucine, lysine, methionine, threonine, and valine. The nonessential amino acids, are manufactured in the body from other amino acids include alanine, arginine, asparagine, aspartic acid, citrulline, cysteine, cystine, gamma-aminobutyric acid, glutamic acid, glutamine, glycine, ornithine, proline, serine, taurine, and tyrosine. Although labeled "nonessential" these amino acids are necessary but do not need to be obtained through the diet because the body can manufacture them as needed. And nonessential amino acids can become "essential" under certain conditions. For instance, the nonessential amino acids cysteine and tyrosine are made from the essential amino acids phenylalanine and methionine. If phenylalanine and methionine are not available in sufficient quantities, cysteine and tyrosine then become essential in the diet.

Free-form amino acids need no digestion and are absorbed directly into the bloodstream. Free-form means the amino acid is in its purest form. These white crystalline amino acids are stable at room temperature and decompose when heated to temperatures of 350°F to 660°F (180°C to 350°C). They are rapidly absorbed and do not come from potentially allergenic food sources.

Precautions- Excess protein puts undue stress on the kidneys and the liver, which are faced with processing the waste products of protein metabolism. Nearly half of the amino acids in dietary protein are transformed into glucose by the liver and utilized to provide needed energy to the cells. This process results in a waste product, ammonia. Ammonia is toxic to the body, so the body protects itself by having the liver turn the ammonia into a much less toxic compound, urea, which is then carried through the bloodstream, filtered out by the kidneys, and excreted. Free form amino acids will NOT lead to this problem.

Free form amino acids are very safe, however, there are side effects that some individuals need to be aware of.

¡ Phenylalanine- Never consume phenylalanine if you are a phenylketonuric. Phenylketonuria is a genetic inability to manufacture the enzyme that converts phenylalanine to tyrosine. This is especially dangerous during the first four years of life and build up may cause mental retardation. Occurrence is estimated one in 12,000 for phenylketonuria (PKU).

¡ Arginine- This amino should be avoided if you have herpes. It may intensify and lead to recurrence of symptoms.

¡ Phenylalanine, tyrosine, and tryptophan- Avoid these amino acids if you are taking anti-depressants referred to as monoamine oxidase or MAO inhibitors. These antidepressants work by inhibiting monoamine oxidase. This is an enzyme that is used by the body to deactivate noradrenalin and adrenalin (stress hormones), and the sleep hormone serotonin. Inhibiting the MAO enzyme allows those hormones to circulate in the body for much longer than usual and is used to help relieve depression, anxiety, and stress. With all medications they have there own side effects and if you can find a practitioner that will prescribe amino acid therapy you will be way ahead of the depression game.

Special Note- All the information in this database is for educational and information purposes only. It is not intended to be used to diagnose and treat any illnesses or conditions whatsoever, nor replace proper medical care. Individual recommendations regarding supplements and diets should come from licensed or certified natural health care practitioners and physicians when necessary. Elderly persons, pregnant women, and persons with health or serious weight conditions should always consult with their doctor before developing or making changes to nutrition or diet plans. Requirements vary due to a wide range of variables such as size, weight, lean body mass and physical demands all are important considerations. Amino Acids Analysis should be considered whenever a thorough nutritional assessment is desired.

Requirements- There is no Recommended Dietary Allowances (RDA) listed. Individual needs may differ due to clinical conditions, biochemical individuality and absorption. All sources of nutrients should be consumed in their most natural state, in the form of a variety of foods or supplements when necessary. Free form amino acid supplements are immediately absorbed by the body and should be consumed with natural occurring cofactors for best results. Consulting with a physician that is properly trained in the natural healing sciences and amino acid therapy may be needed for optimum results.

Written by Jerome Rerucha D.C.

References-
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