| | |
|
| |
| | |
|
|
AMINO ACIDS
Amino Acids are Critical to Life
Amino Acids have a variety of roles in metabolism. One particularly important function is as the building blocks of proteins, which are linear chains of amino acids. Amino acids are also important in many other biological molecules, such as forming parts of coenzymes, as in S-adenosylmethionine, or as precursors for the biosynthesis of molecules such as heme. Due to this central role in biochemistry, amino acids are very important in nutrition.
When taken up into the body in the diet, the 20 standard amino acids are either used to synthesize proteins and other biomolecules or oxidized to ureaand carbon dioxide as a source of energy. The oxidation pathway starts with the removal of the amino group by a transaminase, the amino group is then fed into the urea cycle. The other product of transamidation is a keto acidthat enters the citric acid cycle. Glucogenic amino acidscan also be converted into glucose, through gluconeogenesis.
Of the 20 standard amino acids, 8 are called essential amino acids because the human body cannot synthesize them from other compounds at the level needed for normal growth, so they must be obtained from food. However, the situation is quite complicated since cysteine, taurine, tyrosine, histidineand arginine are semiessential amino acids in children, because the metabolic pathways that synthesize these amino acids are not fully developed. The amounts required also depend on the age and health of the individual, so it is hard to make general statements about the dietary requirement for some amino acids.
(*) Essential only in certain cases.
MSRP: $12.99
Price: $5.99
You Save: 54 %
5-HTP (L-5-Hydroxytryptophan) is an intermediate in the natural conversion of the essential amino acid, tryptophan, to serotonin. Clinical studies have shown that 5-HTP increases the amount and availability of serotonin produced by the body. Increased bra
|
MSRP: $49.99
Price: $14.99
You Save: 70 %
390 grams Pharmaceutical Grade Arginine Powder. Arginine plays an important role in cell division, the healing of wounds, removing ammonia from the body, immune function, and the release of hormones.
|
MSRP: $15.99
Price: $4.99
You Save: 69 %
Glutamine plays a key role in muscle maintenance, intestinal stress and the immune system. L glutamine helps repair and build muscle as it is linked to protein synthesis and improved protein metabolism. And, glutamine helps boost the immune system by b
|
MSRP: $17.99
Price: $6.49
You Save: 64 %
Ornithine. Studies have shown that ornithine increases both insulin and growth hormone levels, which are needed to build and maintain muscle. Ornithine helps combat the muscle loss that is a normal part of the aging process. By helping to elevate growth
| | |
|
|
|