Most energy drinks are loaded with caffeine and sugar, which can cause jitters, dehydration, headaches, and even affect your heart if consumed often. While an occasional drink may not cause harm, regular Effects of Oral L Carnitine Administration in Narcolepsy Patients: A Randomized, Double Blind, Cross Over and Placebo Controlled Trial PLOS One L Carnitine Benefits, Side Effects & Dosage SelfDecode Supplements Acetyl l Carnitine in the Treatment of Peripheral Neuropathies: A Narrative Review Pain and Therapy Springer Nature Link The Role of L Carnitine in Kidney Disease and Related Metabolic Dysfunctions