Most nerve supplements look impressive on the label. Until you compare the doses to what the clinical trials actually used. As a Fellowship Trained Peripheral Nerve Surgeon with 3,000+ nerve procedures, here is L Carnitine for Blood Sugar Support Improve Insulin Sensitivity Naturally When to take L carnitine: Dosage, forms, and side effects The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation ALC (Acetyl L Carnitine) Nutrigreen Nutriherb Nutrilife