Frontiers Discovery and validation of acetyl L carnitine in serum for diagnosis of major depressive disorder and remission status through metabolomic approach Dr Acetyl l carnitine has been compared to placebo treatments. It's also been compared to standard antidepressants. Most of those studies lead to the conclusion that acetyl l carnitine works like Supplements for Depression: A Psychiatrist's Perspective SURUCHI CHANDRA M.D. Nature's Truth Acetyl L Carnitine HCL 1000mg, 30 Capsules, Non GMO, Gluten Free ALCAR Supplement Walmart.com Exploring the potential anti thyroid activity of Acetyl L carnitine: Lactoperoxidase inhibition profile, iodine complexation and scavenging power against H2O2. Experimental and theoretical studies ScienceDirect L Carnitine Linus Pauling Institute Oregon State University