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AMINO ACIDS

L-Carnitine Tartrate

Fat metabolism · workout recovery

MODERATE EVIDENCEREAD THE RESEARCH
Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Last reviewed: May 30, 2026
QUICK ANSWER

L-Carnitine Tartrate: Fat metabolism · workout recovery. The tartrate form supports fat oxidation, exercise recovery, and reduced muscle soreness when taken around training. Standard dose 1500 mg, taken in the pre-workout, about $16/month. Evidence rating: moderate evidence.

What is L-Carnitine Tartrate?

L-Carnitine Tartrate (LCLT) is the most-researched form of carnitine for athletic performance and fat metabolism. It transports long-chain fatty acids into mitochondria where they are oxidized for energy, theoretically allowing the body to use fat as fuel more efficiently during exercise. Research suggests LCLT may reduce post-workout muscle soreness, decrease exercise-induced muscle damage markers, and support faster recovery between training sessions. While weight-loss claims are often overstated, athletes and active adults may benefit from 1,000-3,000 mg per day, typically taken 30-60 minutes before training with a small amount of carbohydrate.

WHY IT MATTERS

The tartrate form supports fat oxidation, exercise recovery, and reduced muscle soreness when taken around training.

Natural food sources

Where possible, get L-Carnitine Tartrate from whole foods first. Common dietary sources include:

Red meat (beef, lamb)PorkPoultryDairy

Where to buy

NOW Foods L-Carnitine 1000mg
RECOMMENDED
NOW Foods, L-Carnitine Tartrate
1500 mg · Pre-workout · ~$16/month

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Interactions

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Common questions

What is L-Carnitine Tartrate?
L-Carnitine Tartrate (LCLT) is the most-researched form of carnitine for athletic performance and fat metabolism. It transports long-chain fatty acids into mitochondria where they are oxidized for energy, theoretically allowing the body to use fat as fuel more efficiently during exercise. Research suggests LCLT may reduce post-workout muscle soreness, decrease exercise-induced muscle damage markers, and support faster recovery between training sessions. While weight-loss claims are often overstated, athletes and active adults may benefit from 1,000-3,000 mg per day, typically taken 30-60 minutes before training with a small amount of carbohydrate.
What is L-Carnitine Tartrate used for?
Fat metabolism · workout recovery. The tartrate form supports fat oxidation, exercise recovery, and reduced muscle soreness when taken around training.
What is the standard dose of L-Carnitine Tartrate?
1500 mg, typically taken in the pre-workout. Approximate cost is $16 per month.
How strong is the evidence for L-Carnitine Tartrate?
Moderate evidence for its primary uses. See the full study list on the research page.

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