l-carnitine benefits for male dose per day Benefits: A Complete Research-Based Guide L-carnitine: Science-Backed Benefits, Risks, and
Description
Its primary job is to act like a shuttle

Nat Rev Endocrinol 8:2232 Park HS, Huh SH, Kim MS et al (2000) Nitric oxide negatively regulates c-Jun N-terminal kinase/stress-activated protein kinase by means of S-nitrosylation
Thus, it is unlikely that an increased plasma concentration of carnitine can cause higher transport of carnitine in the muscle

Pascoe L, Tura A, Patel SK, Ibrahim IM, Ferrannini E, Zeggini E, et al
