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 Acetyl carnitine improves hyperactivity and learning deficits in KAT6A haploinsufficient mice Life Science Alliance ABOUTcarnitine: Clinical benefits of L carnitine supplementations in dialysis related carnitine disorder AboutPharma Frontiers Lcarnitine in metabolic dysfunction associated steatotic liver disease: mechanisms and therapeutic potential