L-Carnitine L-Tartrate (LCLT)

Sports recovery

Function & benefits

A fast-absorbing form of carnitine bound to tartaric acid; clinical studies point to a role in reducing markers of muscle damage and oxidative stress after hard training, supporting efficient recovery.

Dosage & how to use

Recommended dose	1000–2000 mg daily
Best time to take	In the morning and after training with a meal containing carbohydrates
Frequency	Split into two doses

Best forms to choose

Pure capsules or powder of the L-carnitine form (such as Carnipure®), free of D-carnitine impurities.

Important warnings

Best not taken late at night, to avoid insomnia

Avoid it if you have severe kidney failure

Long-term use may raise blood levels of TMAO

Drug interactions

It may reduce thyroid hormone activity in the tissues; take care if you have an underactive thyroid. It may strengthen warfarin and other anticoagulants.

View in the supplements guide

Related supplements

Scientific references

Kraemer WJ et al. J Strength Cond Res 2003 — PMID: 12930169
NIH Office of Dietary Supplements (ODS): Carnitine Fact Sheet

📚 Published sources and research: European Food Safety Authority (EFSA) • National Institutes of Health (NIH - ODS) • PubMed / Cochrane databases

Content last updated: 17 October 2026 · Based on published sources and research (EFSA / NIH / PubMed)

⚖️ Medical disclaimer: The information and data provided here are for health education and nutritional guidance only. They are not a medical diagnosis and never replace a direct consultation with your doctor or pharmacist. Always consult your doctor before starting any supplement, especially during pregnancy or breastfeeding or when taking long-term medication.