NSTK · 01.2026Independent supplement reference
NutriStack
Edition 1.0Updated August 1, 2026

Supplement × Supplement·Evidence index

CLA and L-Carnitine: what the published research says

PubMed indexes 4 records that name CLA and L-Carnitine together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.

Read this first

An evidence index, not guidance.

Every statement below is attributed to a named, dated, linked source.

This page lists published research relevant to CLA and L-Carnitine. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.

The research

4 studies naming CLA and L-Carnitine.

Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.

Conjugated linoleic acid and L-carnitine combination effects on obesity-related miRNAs in diet-induced obese rats.

Obesity research & clinical practice · 2023 · PMID 37634961

Human subjects

“CLA and LC, which are considered weight loss supplements, can potentially regulate metabolism and cellular pathways. However, their combination did not show a synergistic effect on weight loss, possibly due to the reduction in miR-27a expression. Further studies are needed to evaluate the effects of combined fat burners on obesity treatment.”

Nazari et al. · Authors' conclusion

Names both CLA and L-Carnitine in its title.

Lipase-catalyzed esterification of conjugated linoleic acid with L-carnitine in solvent-free system and acetonitrile.

Bioprocess and biosystems engineering · 2007 · PMID 17503088

“When the substrates were 1 mmol CLA and 1 mmol L-carnitine, the maximum conversion (60.9%) was obtained in solvent-free system with 150 mg lipase AY30, 50% water content and 150 mg molecular sieves at the reaction time of 24 h. A novel CLA ester product was successfully isolated and characterized by ESI-MS and (1)H NMR.”

Li et al. · From the abstract

Names both CLA and L-Carnitine in its title.

A comparative study of the effects of erabu sea snake (Laticauda semifasciata) lipids, green tea extract and conjugated linoleic acid on the swimming endurance of mice.

International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition · 2009 · PMID 20533222

Comparative StudyAnimal study

Names CLA and L-Carnitine together in an interaction, co-administration, or pharmacokinetic context.

Limitations

What this evidence cannot tell you.

Search-based evidence indexes have real limits, and it is worth being explicit about them:

NutriStack

Track what you actually take.

NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers CLA, L-Carnitine, and several hundred other substances.

The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.

NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.