L-Tyrosine and Essential Amino Acids: study protocols
6 study groups took L-Tyrosine together with Essential Amino Acids. These are the doses the studies gave. They are not a recommendation.
Fewer than 5 study groups in one unit match, too few to draw the chart.
Commonly used together
6 of 6 study groups took L-Tyrosine and Essential Amino Acids with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Phenylalanine | 4 |
6 study groups
| Study | ||||
|---|---|---|---|---|
| Age moderates the effect of acute dopamine depletion on passive avoidance learning 2015 · balanced/control amino acid beverage · Healthy adults aged 22–40 years, women and men, without a current psychiatric or neurological diagnosis | 5.2 g | — | 1 day | 16 |
| Reliance on habits at the expense of goal-directed control following dopamine precursor depletion 2012 · BAL drink · Healthy men and women aged 19–49 without the listed psychiatric, neurological or major medical conditions | 12.5 g | 87.5 g | 1 day | 14 |
| The subjective and cognitive effects of acute phenylalanine and tyrosine depletion in patients recovered from depression 2005 · BAL balanced amino-acid mixture · Adults aged 24–55 years, men and women, recovered from at least one major depressive episode | 12.5 g | 115 g | 1 day | 17 |
| Melatonin and dopamine as biomarkers to optimize treatment in phenylketonuria: effects of tryptophan and tyrosine supplementation 2014 · LNAA + placebo (LNAA phase) · Adults aged 21–51 years with classical phenylketonuria; 2 women and 8 men enrolled | 98.4 mg/kg | 104 mg/kg | 3 weeks | 10 |
| Melatonin and dopamine as biomarkers to optimize treatment in phenylketonuria: effects of tryptophan and tyrosine supplementation 2014 · LNAA + Trp/Tyr (LNAA + TT phase) · Adults aged 21–51 years with classical phenylketonuria; 2 women and 8 men enrolled | 102 mg/kg | 104 mg/kg | 3 weeks | 10 |
| Protein to Maximize Whole-Body Anabolism in Resistance-trained Females after Exercise 2019 · randomized test protein intake · Resistance-trained females, mean age 23 years, studied during the luteal phase after whole-body resistance exercise | 40 mg/kg | — | 1 day | 8 |