L-Carnitine LC
Fatty-acid transport cofactor
Naturally occurring compound that helps move long-chain fatty acids into mitochondria, studied in fat metabolism and energy production.
Evidence level. Published human clinical data exists, from trials or approved use. About the badges
- Class
- Fatty-acid transport cofactor
- Category
- Fat Metabolism & Lipotropics
- Type
- Single compound
- Abbreviation
- LC
- Development and regulatory status
- Approved as levocarnitine for carnitine deficiency, also sold as a supplement
What researchers study
L-carnitine is a naturally occurring compound, made in the body from lysine and methionine, that helps move long-chain fatty acids into mitochondria for beta-oxidation. It is studied in fat metabolism and energy production.
Research areas
- Mitochondrial fatty-acid transport and beta-oxidation
- Carnitine deficiency biology
- Energy metabolism in muscle and liver models
- Weight-related outcomes in adult trials
Reported findings
Summaries of published results. Each one is tagged with the type of study behind it. They describe research outcomes and are not claims about any product. Why study type matters.
- review
A meta-analysis of 9 randomised trials (911 adults) found mean weight 1.33 kg lower with L-carnitine than with controls
- review
In that analysis, the weight difference declined the longer carnitine was taken
- review
Reference summaries state that weight-loss claims are not consistently supported by clinical trials
Studied alongside
Compounds that appear together in research because their mechanisms complement each other, or as comparators. The reasons given are research reasoning, not recommendations for use.
