L carnitine promotes liver regeneration after hepatectomy by enhancing lipid metabolism Journal of Translational Medicine Springer Nature Link Amazon.com: Nerve & Peripheral Neuropathy Support Supplement with 1200mg R Alpha Lipoic Acid L Carnitine Vitamin B12 B1 B6 D3 E Folate Lions Mane NAC Magnesium Turmeric Liver Detox, Antioxidant & Mental Support : L carnitine Could Be Beneficial in Nonalcoholic Fatty Liver Disease Patients by Improving Choline Metabolism and Reducing Liver Biomarkers European Medical Journal L carnitine is a naturally occurring amino acid structure that is made in the human brain, liver, and kidneys. L carnitine plays a critical role in energy production, as it converts fat into energy.