What is L-Tyrosine?

Category: Supplements

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See also: Tyrosine Capsules Tyrosine Spray

An amino acid used by cells to create proteins.  Under particular circumstances including stress, cold and fatigue, L-Tyrosine may improve mood and cognitive and physical performance. Under normal conditions there does not seem to be a measurable effect.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Parkinson's disease 9 7
Brain fog 7 1
Increased energy 7 2
Depressed mood 4 2
Major depressive disorder 4 2
Problems concentrating 3 2

Show all 22 reasons taken


  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations
Severe 0
Moderate 1
Mild 4
None 24

Commonly reported side effects and conditions associated with L-Tyrosine

Side effect Patients
Difficulty taking all pills 1
Increased energy 1
Indigestion 1
Speedy feeling 1

Dosages

Based on patients currently taking L-Tyrosine

Dosage Patients
500 mg twice daily 2
2,000 mg daily 1
1,500 mg twice daily 1

Why patients stopped taking L-Tyrosine

Multiple reasons could be selected

Reason Patients
Other 9
Did not seem to work 7
Personal research 5
Doctor's advice 2
Side effects too severe 2
Expense 1
See all 21 patients who've stopped taking L-Tyrosine

Duration

Currently taking L-Tyrosine

Duration Patients
2 - 5 years 3
5 - 10 years 1

Stopped taking L-Tyrosine

Duration Patients
Less than 1 month 4
1 - 6 months 10
6 months - 1 year 2
1 - 2 years 3
2 - 5 years 2
Adherence
Adherence Evaluations
Always 23
Usually 4
Sometimes 1
Never taken as prescribed 1
Burden
Burden Evaluations
Very hard to take 2
Somewhat hard to take 1
A little hard to take 2
Not at all hard to take 24
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 0
$50-99 1
$25-49 2
< $25 13
Not specified 13
Last updated:

1 patient evaluation for L-Tyrosine

Dec 15, 2010 (Started Oct 01, 2010)

  • Effectiveness
    Major (for Support brain health)
  • Effectiveness
    Major (for Parkinson's disease)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 500 mg Daily
Advice & Tips: I switched to Acetyl L-Tyrosine which has the same benefits but better pharmacological properties.
Cost: < $25 monthly
Side effects: indigestion

Nov 1, 2010 (Started Oct 01, 2010)

  • Effectiveness
    Major (for Parkinson's disease)
  • Side effects
    Mild (indigestion)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 500 mg Daily
Advice & Tips: Tyrosine was very effective for balance and coordination problems. Before I started taking it I had an average Wii age of 58 (n=20) when taking it my average Wii age dropped to 42 (n=19). My actual age is 70.
Cost: < $25 monthly
Side effects: indigestion

  • 2 helpful marks
Last updated:
Showing 1 of 1 patient evaluation for L-Tyrosine