Frontiers Lcarnitine in metabolic dysfunction associated steatotic liver disease: mechanisms and therapeutic potential Role of L carnitine in female infertility Reproductive Biology and Endocrinology Springer Nature Link L carnitine tartrate supplementation in the fight against infectious disease The protective effect of L carnitine on testosterone synthesis pathway, and spermatogenesis in monosodium glutamate induced rats BMC Complementary Medicine and Therapies Springer Nature Link Early research into L carnitine was often cited as underwhelming, showing negligible changes in muscle carnitine content and fat loss outcomes. However, these findings may have been limited by a short study window