Amino & PerformanceNo.051

L-Carnitine

Fat metabolism, exercise recovery (marketed).

Typical / RDA500–2,000 mg
Upper limitGenerally safe
EvidenceLimited

How to take it

Timing With a mealFood With carbsForm Tartrate / acetyl

What to know

Shuttles fat into cells for energy and is made by the body. Marketed for fat loss with weak evidence; recovery benefits are more plausible but small.

Interactions & cautions

  • Low risk; fat-loss claims are largely unsupported.

Do you actually need it?

Not a fat-burner; modest recovery role at best.

See how this fits your full stack →

Reference values: NIH Office of Dietary Supplements, adult general population. Educational information only — not medical advice. Confirm with a healthcare professional.

One supplement is a question. Your full stack is the answer.

The stack check totals every source so you don't have to.

Check my stack