L CARNITINE for fat loss? A quick summary and understanding of this popular but misunderstood supplement Study links depression to low blood levels of acetyl L carnitine Acetyl L Carnitine SLC25A45 is required for mitochondrial uptake of methylated amino acids and de novo carnitine biosynthesis: Molecular Cell Targeting Skeletal Muscle Dysfunction With L Carnitine for the Treatment of Patients With Chronic Obstructive Pulmonary Disease In Vivo