is using l carnitine ethical L-Carnitine Benefits, Uses, Dosage, Foods, Side Effects workout or post Know Your Nutrients: L-Carnitine -

In comparison, acetyl l carnitine by itself stimulates such growth by "only" 5.6%, while a combination of acetyl l carnitine and l arginine taken separately achieves a growth rate of 5.2%

10.1016/j.clnu.2017.11.001 48 HirasawaA.TsumayaK.AwajiT.KatsumaS.AdachiT.YamadaM.et al

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[1] [13] Deficiency [edit] Carnitine deficiency is rare in healthy people without metabolic disorders, indicating that most people have normal, adequate levels of carnitine normally produced through fatty acid metabolism

Abstract Background It has been demonstrated that acute GPLC supplementation produces enhanced anaerobic work capacity with reduced lactate production in resistance trained males