The effect of l carnitine supplementation on mortality and clinical outcomes in ventilator dependent critically ill patients with obesity and COVID 19: Protocol for a randomized double blind placebo controlled trial ScienceDirect The intestinal microbial metabolite acetyl l carnitine improves gut inflammation and immune homeostasis via CADM2 ScienceDirect The bright and the dark sides of L carnitine supplementation: a systematic review Journal of the International Society of Sports Nutrition Springer Nature Link Carnitine: the claims and why it may not work Amazon.com: NaturaLife Labs Acetyl L Carnitine (ALCAR) 1500 mg per Serving 100 Capsules Non GMO, Gluten Free, Vegan : Health & Household