500 mg 100 tablets: Source Naturals | Item Catalogue Number: 00326
Source Naturals: L-tyrosine is an amino acid that can be converted in the brain and in the adrenal glands to dopamine, nor-epinephrine, and epinephrine (adrenaline) hormones that are depleted by stress, overwork and certain drugs. By replenishing nor-epinephrine in the brain, mental energy levels may be improved. The conversion step from L-tyrosine to norepinephrine may be enhanced co-factor vitamins B6 and C are consumed with L-tyrosine.
L-tyrosine also acts as a precursor to thyroid hormones, enkephalins and melanin.
Cells in the adrenal medulla synthesize and secrete nor-epinephrine and epinephrine. Since both nor-epinephrine and epinephrine can cause smooth muscle (arterial) contraction, care with blood pressure should be taken when supplementing with L-tyrosine.
|Dosage and Use|
|Suggested dose is 500 to 1000 mg in the morning or afternoon.|
More may be necessary for depression or pain.
These products are best utilized when taken on an empty stomach mixed with juice or water.
Adequate cofactors (vitamins B6 and C) should also be taken if not included with the product.
|Cancer patients should avoid taking L-phenylalanine and L-tyrosine. Certain cancers, such as melanoma, depend on these amino acids to fuel their growth.|
Supplemental use of L-phenylalanine and L-tyrosine may raise or normalise blood pressure. Insomnia may occur from over-stimulation if taken too close to bedtime. Individuals with the rare metabolic disorder phenylketonuria should avoid phenylalanine. Those suffering from migraine headaches should also avoid L-phenylalanine and L-tyrosine because they form tyramine, a substance that may trigger migraines.