l-carnitine sex Effects of Administration on Sperm and Hormone Levels in a Male Wistar Rat Reproductive System Injury Model in a High-Altitude Hypobaric Hypoxic Environment Bigmuscles Nutrition L-Carnitine L-Tartrate Powder
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doi: 10.2165/00007256-200131150-00003

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The greatest benefit seems to be achieved when acetyl-L-carnitine is given using both routes
