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Gamma Aminobuytric Acid.

L-Methionine is an essential sulfur amino acid. The body cannot produce L-Methionine, which must be obtained from food or supplement sources.

Amino Acids, the famed building blocks of protein, are essential to the formation of muscle tissue and mass. They have widespread involvement in a range of bodily functions, including efficient brain function and the manufacture of energy. A body in proper balance (homeostasis) needs far more glutamine than any other amino acid, and Nature's Plus L-Glutamine provides 500 mg of this important amino acid.

Twinlabs L-Lysine is a free form amino acid.

L-Tyrosine is an amino acid. One hard gelatin capsule supplies 500 mg of free form, crystalline pure L-Tyrosine. Tyrosine acts as a mood elevator and aids in the production of malanin (the pigment responsible for skin and hair color). Among its other functions, supplementation of L-Tyrosine has been used for stress reduction, and research suggests it may be helpful against chronic fatigue and narcolepsy. It has also been used to help individuals suffering from anxiety, depression, allergies, and headaches. In addition, it suppresses the appetite and helps reduce body fat. L-Tyrosine is an essential amino acid important for the neurotransmitters: dopamine, norephrine, adrenalin and epinephrine. Tyrosine is suggested for depression, precursor of hormones, hypothyroidism, and catecholestrogens.

Now Amino 1000 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.

Taurine is an amino acid-like compound and a component of bile acids, which are used to help absorb fats and fat-soluble vitamins. Taurine also helps regulate the heart beat, maintain cell membrane stability, and prevent brain cell over-activity.

Twinlab L-Glutamine is the most abundant amino acid found in muscle and plasma (accounting for more than 60% of the free amino acid pool in muscle cells). Many top sports nutrition researchers believe that L-Glutamine by Twinlab may be the single most important amino acid in the body for creating muscle tissue growth and protecting the body from overtraining.

L-Arginine is a conditionally essential, free form, basic amino acid involved primarily in urea metabolism and excretion as well as DNA synthesis.L-arginine is an essential amino acid. It is required for the body to synthesize nitric oxide, which enables the arterial system to retain its youthful elasticity. Nitric oxide also helps to produce endothelial relaxation factor, which is needed by the arterial system to expand and contract with each heartbeat.L-arginine has been shown to promote natural growth hormone (GH) release from the pituitary gland. GH promotes healthy anabolic metabolism throughout the body, helping to maintain protein synthesis within cells.

L-Arginine is a conditionally essential, free form, basic amino acid involved primarily in urea metabolism and excretion as well as DNA synthesis.L-arginine is an essential amino acid. It is required for the body to synthesize nitric oxide, which enables the arterial system to retain its youthful elasticity. Nitric oxide also helps to produce endothelial relaxation factor, which is needed by the arterial system to expand and contract with each heartbeat.L-arginine has been shown to promote natural growth hormone (GH) release from the pituitary gland. GH promotes healthy anabolic metabolism throughout the body, helping to maintain protein synthesis within cells.

Each person's ability to break down protein into single amino acids differs. Factors such as diet, illness, stress, old age, and an inability to secrete digestive enzymes may result in a deficiency of one or more amino acids. The rate of protein formation and the production of new cells in inhibited when a one amino acid is missing. By supplementing your diet with pure amino acids, you are saving your body the necessary step of breaking down dietary protein to obtain these amino acids. The advantage of free form amino acid powder over whole or partially hydrolyzed protein is that they can be directly absorbed providing maximum and rapid absorption. Each free form amino acid powder comes in a glass bottle to minimize the hydroscopic effects.

L-Methionine is an amino acid. One hard gelatin capsule contains 500mg of free form, crystalline pure- L-Methionine.