PubMed
The effect of (L-)carnitine on weight loss in adults: a systematic review and meta-analysis of randomized controlled trials
Pooyandjoo et al., 2016
Longevity & Anti-AgingSupplement / Rx formsC
L-Carnitine
Levocarnitine
Amino-acid derivative used for mitochondrial and metabolic support (non-peptide).
Observational report only — live community data. Not medical advice. Does not recommend doses, protocols, or treatments.
- Studies cited
- 4
- Research grade
- C
- Experience
- 99
- Activity
- 50
Overall check-ins
Trackers & reports
Overview
About L-Carnitine
Amino-acid derivative used for mitochondrial and metabolic support (non-peptide).
- Category
- Longevity & Anti-Aging
- Regulatory status
- Supplement / Rx forms
- Also known as
- Levocarnitine
- Self-reports
- 25
Community
What 25 users report
25 community reports
Overall experience
From check-in ratings — separate from side effects logged below. Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Favorable 97% · Mixed 3% · Unfavorable overall 0%
Most reported benefits
Benefits users selected when logging a favorable or mixed check-in.
Appetite
152
Most logged side effects
Side effects are logged separately from overall experience. A favorable check-in can still include nausea, fatigue, or injection-site reactions.
Nausea
5
Self-reported dose per injection
Median bucket: 5+ mg · Most common: 5+ mg
Reports span 0.2 to ≥ 5 mg (open-ended top bucket)
0.2–0.4 mg
3
0.4–0.6 mg
2
5+ mg
147
Anonymized self-reports from PeptIQ users — not prescribing guidance. Buckets group similar logged amounts; open-ended top buckets mean “at least” that dose.
Commonly stacked with
How repeat users are trending
Among repeat reporters, 84% said they felt similar to their last entry, 16% more positive, and 0% more negative.
Overall, repeat reporters leaned more positive than their previous entry.
Median gap between entries: 119 days · Based on 25 repeat reporters
Research
Cited research (3)
Source
PubMed
Randomised clinical trial: the efficacy and safety of propionyl-L-carnitine therapy in patients with ulcerative colitis receiving stable oral treatment
Mikhailova et al., 2011
ClinicalTrials.gov
Propionyl-L-Carnitine in Ulcerative Colitis (NCT01026857)
ClinicalTrials.gov, 2009
Tools
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Help
Frequently asked
What do PeptIQ users report about L-Carnitine?
This page summarizes 25 anonymized self-reports from PeptIQ users who track L-Carnitine, including commonly reported effects and co-tracked peptides. These are observational patterns, not clinical outcomes.
How do side effects relate to overall experience for L-Carnitine?
PeptIQ separates overall check-in ratings (favorable, mixed, or unfavorable) from logged side effects like nausea or fatigue. Users often report benefits and side effects in the same check-in — a high experience score does not mean zero side effects were noted.
What research is cited for L-Carnitine?
3 sources are linked on this page, including PubMed articles, clinical trial registries, and FDA labels where applicable. Citations describe published research — not recommendations.
Is L-Carnitine safe to use?
This wiki does not assess safety or recommend use. L-Carnitine is listed as Supplement / Rx forms. Consult a licensed clinician for personal medical decisions.
What are the purported benefits and uses of L-Carnitine?
This wiki summarizes observational community reports and linked citations for L-Carnitine. It does not assert therapeutic benefits. See the cited research list on this page and the educational profile for L-Carnitine for study-level context — not medical advice.
What is the legal status of L-Carnitine?
L-Carnitine is listed in PeptIQ as Supplement / Rx forms. Regulatory status varies by jurisdiction and can change. This wiki does not provide legal advice; check current FDA and local rules and talk with a licensed clinician or counsel for personal decisions.
What are the known or theoretical side effects and risks of L-Carnitine?
Safety data quality for L-Carnitine varies widely by compound and study design. PeptIQ does not establish a risk profile here. Review primary literature, product labeling where applicable, and clinician guidance. Community self-reports are not a substitute for clinical evidence.
What is the current state of research on L-Carnitine?
This page links 3 indexed sources for L-Carnitine. Evidence maturity differs by application — some peptides have large human programs, others are mostly preclinical. Treat citation counts as literature volume, not proof of efficacy.