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Due to high concentration of L-carnitine in epididymis and its potential in stabilizing sperm plasma membrane and increasing sperm survival, and reduction of sperm intracellular L-carnitine level following cryopreservation, (77) some studies have suggested that adding L-carnitine to cryomedium can compensate its loss in sperm cell and improve sperm parameters during freeze-thaw process

L-Carnitine Treatment Reduces Severity of Physical and Mental Fatigue and Increases Cognitive Functions in Centenarians: A Randomized and Controlled Clinical Trial2. The American Journal of Clinical Nutrition , vol

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Am J Kidney Dis 1998 Aug;32(2):265-72 [abstract] Feinfeld DA, Kurian P, Cheng JT, Dilimetin G, Arriola MR, Ward L, Manis T, Carvounis CP