L carnitine ameliorates the muscle wasting of cancer cachexia through the AKT FOXO3a MaFbx axis Nutrition & Metabolism Springer Nature Link L carnitine ameliorates the muscle wasting of cancer cachexia through the AKT FOXO3a MaFbx axis Nutrition & Metabolism Springer Nature Link The carnitine system and cancer metabolic plasticity Cell Death & Disease Biallelic variants in BBOX1 cause L Carnitine deficiency and elevated butyrobetaine npj Genomic Medicine Frontiers Association between fatigue, peripheral serotonin, and L carnitine in hypothyroidism and in chronic fatigue syndrome L Carnitine: Benefits, side effects, and dosage