What is Acetyl L-Carnitine?

Category: Supplements

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Acetyl L-Carnitine is the name of a dietary supplement. L-Carnitine is a cofactor in "aerobic metabolism"; this is the chemical reaction in the body which turns food into energy using oxygen. It may also have anti-oxidant properties, scavenging free radicals within cells.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Fatigue 55 24
Amyotrophic lateral sclerosis 52 19
General health 34 6
Brain fog 16 6
Parkinson's disease 10 4
Fibromyalgia 7 1

Show all 42 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 1
Moderate 1
Mild 2
None 61

Commonly reported side effects and conditions associated with Acetyl L-Carnitine

Side effect Patients
Abdominal cramps 1
Back pain 1
Lightheadedness 1
Liver damage 1
Nausea 1

Dosages

Based on patients currently taking Acetyl L-Carnitine

Dosage Patients
500 mg daily 5
500 mg twice daily 5
1,000 mg daily 4
1,500 mg daily 3
250 mg daily 2
400 mg daily 2
800 mg daily 2
500 mg three times daily 2
1,000 mg three times daily 2
1 g daily 1

See all 13 dosages

Why patients stopped taking Acetyl L-Carnitine

Multiple reasons could be selected

Reason Patients
Did not seem to work 26
Other 22
Expense 9
Personal research 4
Course of treatment ended 3
Doctor's advice 3
Side effects too severe 3
See all 63 patients who've stopped taking Acetyl L-Carnitine

Duration

Currently taking Acetyl L-Carnitine

Duration Patients
1 - 6 months 6
6 months - 1 year 3
1 - 2 years 3
2 - 5 years 6
5 - 10 years 7
10 years or more 6

Stopped taking Acetyl L-Carnitine

Duration Patients
Less than 1 month 8
1 - 6 months 23
6 months - 1 year 13
1 - 2 years 12
2 - 5 years 4
5 - 10 years 2
10 years or more 1
Adherence
Adherence Evaluations
Always 38
Usually 21
Sometimes 5
Never taken as prescribed 1
Burden
Burden Evaluations
Very hard to take 0
Somewhat hard to take 9
A little hard to take 11
Not at all hard to take 45
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 2
$50-99 2
$25-49 13
< $25 15
Not specified 33
Last updated:

8 patient evaluations for Acetyl L-Carnitine

Nov 1, 2015 (Started Jun 01, 2008)

  • Effectiveness
    None (for Support brain health)
  • Effectiveness
    None (for Parkinson's disease)
  • Side effects
    None
  • Adherence
    Usually
  • Burden
    Not at all hard to take
Dosage: 600 mg Daily
Advice & Tips: Don't follow any recommendations of David Perlmutter re supplements fo PD!
Cost: < $25 monthly

Mar 8, 2012 (Started Jun 01, 2008)

  • Effectiveness
    Can't tell (for Nueroprotection)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 500 mg Daily
Cost: < $25 monthly

  • 0 helpful marks

Feb 15, 2012 (Started Aug 15, 2009)

  • Effectiveness
    None (for fatigue)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Somewhat hard to take
Dosage: 250 mg Daily
Cost: $25-49 monthly

Feb 10, 2010 (Started Aug 15, 2009)

  • Effectiveness
    Moderate (for fatigue)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Somewhat hard to take
Dosage: 1000 mg Daily
Cost: $25-49 monthly

  • 0 helpful marks

May 29, 2011 (Started May 21, 2011)

  • Effectiveness
    Slight (for fatigue)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1 g Daily

  • 0 helpful marks
Last updated:
Showing 3 of 8 patient evaluations for Acetyl L-Carnitine