Tyrosin is the non-essential amino acid precursor for dopamine, norepinephrine and epinephrine. Tyrosine hydroxylase converts tyrosine into the dopamine precursor L-DOPA; BH4, Vitamin D and iron are cofactors for that enzymatic activity.
- Implicated in depression, hypothyroidism, blood pressure disorders. If phenylalanine is normal or high, iron, Vitamin C, and Niacin supplementation may help to convert phenylalanine to tyrosine.
- Low tyrosine relative to phenylalanine could also suggests that tetrahydrobiopterin (BH4) might be low.
- Increased tyrosine may exacerbate migraine headaches and hyperthyroid conditions.
- Elevated tyrosine levels may occur due to supplementation (phenylalanine or tyrosine), heritable enzyme defects, or liver disease.
- High levels may indicate an inability to utilize tyrosine properly, perhaps because of low levels of enzyme co-factors such as iron, copper, iodine, B6, and vitamin C.
$79 per year
$6.60 per month billed annually
Use promocode
$79 per year
$250 single payment
$45 per month
Save time on interpreting lab results with the largest database of biomarkers online. In-depth research on any test at your fingertips, all stored and tracked in one place.
Learn More
At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put industry-leading security standards in place to help protect against the loss, misuse, or alteration of the information under our control. We use procedural, physical, and electronic security methods designed to prevent unauthorized people from getting access to this information. Our internal code of conduct adds additional privacy protection. All data is backed up multiple times a day and encrypted using SSL certificates. See our Privacy Policy for more details.
Alanine, Alloisoleucine, Alpha-aminoadipate, Alpha-aminobutyrate, Arginine, Argininosuccinate, Asparagine, Aspartate, Beta-alanine, Beta-aminoisobutyrate, Citrulline, Cystathionine, Cystine, Gamma-aminobutyrate, Glutamate, Glutamine, Glycine, Histidine, Homocitrulline, Homocystine, Hydroxylysine, Hydroxyproline, Isoleucine, Leucine, Lysine, Methionine, Ornithine, Phenylalanine, Proline, Sarcosine, Serine, Taurine, Threonine, Tryptophan, Tyrosine, Valine
