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Other compounds & fats · FROM DR. PURSER’S TEACHING

Carnitine

A compound involved in transporting fatty acids into mitochondria.

Based on teaching by Dan Purser, MD. How we prepare these guides

Updated Sep 23, 2026 · Educational reference

THE TEACHING CONNECTION

A compound involved in transporting fatty acids into mitochondria.

What it does

A compound involved in transporting fatty acids into mitochondria.

How supplementation is approached

Connect carnitine with fatty-acid transport, energy demands and recovery. The CMA athlete framework reviews it alongside amino acids, CoQ10, magnesium and B vitamins. A low-energy complaint alone does not show that a carnitine supplement is the missing step.

What symptoms can—and cannot—tell you

Rare inherited disorders and certain medical conditions can cause carnitine deficiency. Fatigue alone does not diagnose it, and these disorders require specific clinical evaluation.

Food sources

Meat, fish and dairy; the body also makes carnitine.

Supplement forms

L-carnitine, L-carnitine L-tartrate and acetyl-L-carnitine are different preparations; match the form to the recommendation.

What to track and reassess

Compare the intended activity or recovery goal with actual tolerance and use. Document the exact form, since L-carnitine and acetyl-L-carnitine are different preparations.

From starting support to follow-up

If you and your clinician start a CMA replenishment plan, you may add one new product at a time, often waiting 3–7 days to see how you feel. A check-in is usually planned near ten weeks during an approximately 100-day period. Follow your written plan for amounts and timing. At follow-up, you may continue, change, or stop each item. This timetable does not automatically end longer-term support.

Names you may see

Carnitine