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:: Fitness - Supplements -
Amino Acid Supplements
In chemistry, an amino acid is any molecule that contains
both amine and carboxyl functional groups. In biochemistry,
this term refers to alpha amino acids. These alpha amino acids
are components of proteins. In proteins, amino acids are joined
together in a chain by peptide bonds between their amino and
carboxylate groups. An amino acid residue is one amino acid
that is joined to another by a peptide bond. Each different
protein has a unique sequence of amino acid residues, this
is its primary structure.
There are 20 standard amino acids used by cells in protein
biosynthesis. These 20 amino acids can be biosynthesised from
simpler molecules, but organisms differ in how many they are
able to produce and essential amino acids must be obtained
in their diet.
Amino acids in proteins: Amino acids are the basic
structural building units of proteins. 20 amino acids are
encoded by the standard genetic code and are called proteinogenic
or standard amino acids.
Non-protein amino acids: Hundreds of types of non-protein
amino acids have been found in nature and they have multiple
functions in living organisms. In humans, non-protein amino
acids also have biologically-important roles. Glycine, gamma-aminobutyric
acid and glutamate are neurotransmitters and many amino acids
are used to synthesize other molecules.
Essential & Non-Essential Amino Acids
Of the 20 standard proteinogenic amino acids, 10 are called
essential amino acids because the human body cannot synthesize
them from other compounds through chemical reactions, and
they therefore must be obtained from food.
An essential amino acid or indispensable amino acid, is an
amino acid that cannot be synthesized de novo by the organism
(usually referring to humans), and therefore must be supplied
in the diet. They are: histidine, isoleucine, leucine, lysine,
methionine, phenylalanine, threonine, tryptophan, and valine.
In addition, the amino acids arginine, cysteine, glycine and
tyrosine are considered conditionally essential, meaning they
are not normally required in the diet, but must be supplied
exogenously to specific populations that do not synthesize
it in adequate amounts.
The distinction between essential and non-essential amino
acids is somewhat unclear, as some amino acids can be produced
from others. Which amino acids are essential varies from species
to species, as different metabolisms are able to synthesize
different substances.
Foodstuffs that lack essential amino acids are poor sources
of protein equivalents, as the body tends to deaminate the
amino acids obtained, converting proteins into fats and carbohydrates.
Therefore, a balance of essential amino acids is necessary
for a high degree of net protein utilization, which is the
mass ratio of amino acids converted to proteins to amino acids
supplied.
Amino Acid Supplements
Sportsmen take Amino Acids as Amino Acid Supplements to increase
muscle bulk. Amino Acid Supplements are prescribed as a medical
treatment during the recovery period after serious illnesses,
traumas or burns and scalds. Amino Acid Supplements are also
used as the treatment for metabolic diseases and immunodeficiency.
Here is the list of common used Amino Acid Supplements:
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20 Amino Acids
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Retail $12.99
Discount: $5.74
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Now Amino 1500 contains a balanced
blend of the following 20 essential and non-essential
amino acids: L-alanine, L-arginine, L-aspartic
acid, L-carnitine, L-cysteine, L-glutamic acid,
L-glycine, L-histidine, L-isoleucine, L-leucine,
L-lysine, L-methionine, L-ornithine, L-phenylalanine,
L-proline, L-serine, L-threonine, L-tryptophan,
L-tyrosine, L-valine.
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$7.25
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8 Essential Amino Acids
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Retail $49.95
Discount: $19.98
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Amino Acids are very small biomolecules which
are the principal building blocks of proteins
and enzymes. There are 20 amino acids, and human
body is not able to produce all of them. At least
8 of the important organic compounds must be consumed
in the diet.
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$29.97
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Amino Acids Complex Supplements
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Retail $14.49
Discount: $5
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Each tablet of Amino Acid Complex
typically contains the following amino acids that
naturally occur in the following approximate amounts:
Lysine 162mg, Cystine 21mg, Arginine 29mg, Methionine
23mg, Tyrosine 38mg, Threonine 77mg,
Tryptophan 30mg, Leucine 124mg, Phenylalanine
34mg, Isoleucine 64mg, Valine 62mg,
Glutamic Acid 198mg, Histidine 21mg, Glycine 22mg,
Alanine 56mg, Proline 64mg, Serine 80mg, Aspartic
Acid 122mg, Great Fitness Formula
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$9.49
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Twinlab Amino Fuel Supplement
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Retail $15.00
Discount: $9
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Highest quality. Twinlab's
Amino Fuel is a high tech bodybuilding formula
that contains L-carnitine, branched chain amino
acids (L-leucine, L-isoleucine and L-valine) and
peptide bonded amino acids derived from pharmaceutical
grade pancreatic (enzymatic) digests of whey protein
(lactalbumin) and egg white protein (albumin),
nature's highest quality (PER) amino acid sources.
Whey protein is the predominant protein in human
milk and is of higher quality (PER) than casein.
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$5.99
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Amino Acid 2222 SoftGel Supplement
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Retail $29.95
Discount: $11
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Each two softgel serving of Superior Amino 2222
Softgels provides 2,000 milligrams of high quality
amino acids including the eight essentials. Superior
Amino 2222 Softgels are easier to swallow than
most tablets and are rapidly digested and absorbed.
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$18.95
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L-Arginine Amino Acid Supplement
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Retail $17.99
Discount: $7
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L-Arginine amino acid is a conditionally essential
basic amino acid involved primarily in urea metabolism
and excretion as well as DNA synthesis.
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$9.99
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L-Proline
Amino Acid Supplement
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Retail $14.99
Discount: $4
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L-Proline is an amino acid that is essential
for the synthesis of collagen, the most abundant
protein in mammals. L-Proline therefore provides
building blocks that help to stabilize and strengthen
the structural components of the body.
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$8.65
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L-Lysine Amino Acid Powder Supplement
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Retail $16.99
Discount: $6.20
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L-Lysine is an essential amino acid, which means
your body cannot manufacture it. It must be obtained
through the diet or by supplementation. Lysine
is one of the most well known amino acids and
is an essential component of all proteins.
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$10.79
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L-Tryptophan Amino Acid Supplement
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Retail $29.98
Discount: $14.73
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The essential amino acid l-tryptophan helps support
relaxation, restful sleep, and feeling better.
L-Tryptophan plays a part in the synthesis of
both melatonin and serotonin, hormones involved
with mood and stress response.
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$15.25
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Branched
Chain Amino Acid Supplement
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Retail $24.95
Discount: $12
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Branched Chain Amino Acids (BCAA): BCAA 1000
contains a potent balance of Branched Chain Amino
Acids which are building blocks of muscle mass
and size. Metabolized directly in the muscle,
BCAAs, may improve nitrogen retention by sparing
other amino acid groups for repair and rebuilding.
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$12.99
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