most bioavailable l carnitine L-carnitine, batch-testing, and the problem with self-prescription in elite sport. Oral L-carnitine achieves bioavailability of just 14–18% of the administered dose. In a well-nourished elite athlete with no deficiency, the evidence for Top L-Carnitine Supplements | GNC

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[DOI] [PubMed] [Google Scholar] 146.Imperato A., Obinu M.C., Dazzi L., Carta G., Mascia M.S., Casu M.A., Gessa G.L