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Vitamin Vitality

Amino acid

L-Carnitine

L-carnitine is a compound the body makes from lysine and methionine, and also obtains from meat and dairy. Its established biochemical function is the transport of long-chain fatty acids across the inner mitochondrial membrane.

Honest information about L-Carnitine

L-Carnitine is included in our formulas as a botanical ingredient with traditional wellness heritage. No authorised health claim has been approved for it under EU or GB law, so we share only its identity, origin, dose and documented history — never implied benefits.

Claims held “on hold” pending evaluation are treated here as unauthorised. We will not imply an effect through images, testimonials or suggestive wording either.

Forms and what appears on a label

Common forms are L-carnitine tartrate, acetyl-L-carnitine and propionyl-L-carnitine. The declared figure should state elemental L-carnitine, not the weight of the salt, because the two differ substantially.

Where it comes from

Red meat, poultry, fish, dairy products.

Dose and how we use it

Featured in our Serenity and Masculine formulations.

A daily dose of 500 to 2,000 mg is commonly recommended.

What research has — and has not — established

Trials in exercise performance, recovery and fatigue are numerous but heterogeneous, and reviews report small or inconsistent effects. Describing the biochemistry is factual; asserting a benefit from it is not authorised in the EU or GB.

Cautions and interactions

High doses can cause a fishy body odour and digestive upset. Seek advice if you have hypothyroidism, seizures, or kidney disease, or if you take warfarin.

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Formulated with L-Carnitine

Deep dive

From the Journal

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