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L-Tyrosine
L-phenylalanine is an essential amino acid which can be converted to L-Tyrosine by a complex biochemical process which takes place in the liver. L-Tyrosine can be converted by neurons in the brain to dopamine and norepinephrine (noradrenaline), hormones which are depleted by stress, overwork and certain drugs. By replenishing norepinephrine in the brain, mental energy levels are enhanced, some forms of depression are alleviated, and a feeling of contentment often occurs. Because of the liver conversion necessary for L-phenylalanine to have these effects, L-Tyrosine is often faster acting. In addition, the conversion step from L-Tyrosine to norepinephrine may be enhanced if the cofactors (vitamins B6 and C) are included. Some of the norepinephrine will also be converted to epinephrine (adrenaline) in the brain’s adrenal medulla by use of S-adenosylmethionine (SAM-e) as a methylating agent. Since both norepinephrine and epinephrine can cause smooth muscle (arterial) contraction, care with blood pressure should be taken when supplementing L-phenylalanine or L-Tyrosine. Also see L-Tyrosine
Plus Powder with Vitamin C and B6, L-Tyrosine is a precursor of two thyroid hormones. Amount per capsule
Dosage and Use Caution: 500
mg 60 capsule, Code 3286-6..$9.95
These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease
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